Document folder

Information

  • Patent Grant
  • 6659675
  • Patent Number
    6,659,675
  • Date Filed
    Monday, October 7, 2002
    22 years ago
  • Date Issued
    Tuesday, December 9, 2003
    21 years ago
Abstract
A document folder has a cover formed of relatively flexible sheet material with a back and front panels, and a spine hingedly connecting the panels so that they may be disposed in an overlying position and provide an enclosure for documents therebetween. The panels are movable relative to each other about the spine, and disposed therebetween is a relatively rigid stiffener dimensioned cooperatively with the back panel to rigidify the folder when stored vertically. A document holder is engaged with the stiffener for securing a multiplicity of documents between the stiffener and the front panel. The cover may be integrally formed or assembled from separate panels, one of which provides the spine. At least a portion of the cover is formed from a material which may be imprinted in a computer printer.
Description




BACKGROUND OF THE INVENTION




The present invention relates to document folders and, more particularly, to folders into which documents are easily inserted and removed from, and which may be stored in erect position in a row of folders when individual folders are vertically positioned in horizontally extending rows.




Document or file folders, e.g., manila folders, are well known and are employed for collecting, accumulating, and indexing or segregating a plurality of related documents in a unitary volume. Typical applications for document folders include bundling and indexing legal documents and retail sales records. In retail specialty sales, sales receipts are kept as a record of business transactions for each day for financial reasons and as a record of a customer's instructions concerning an order.




The receipts thereby provide a record of customers' orders which may be referred to for various purposes, including the filling of repeat orders. This type of repeat order transaction is common in the retail florist industry. For example, many customers order flowers or floral arrangements simply by asking for the same arrangement of flowers that was sent on a particular previous occasion. Thus, most retail florists keep extensive records comprising copies of daily retail sales slips, organized in chronological, or other, order. Such records may be kept in a document folder which provides a ready reference for sales persons when a customer requests a repeat of a previous order.




The document folders in which the sales receipts are bundled may be kept in a drawer or a filing cabinet.




Similarly, professionals such as physicians maintain file folders into which they insert documents relating to patients and wish to maintain them in chronological or other specific order for repeated reference. Lawyers store documents in folders which separate by client, matter and subject.




Generally, file folders are stored in horizontal or vertical file drawers and have tabs with indicia placed thereon to facilitate their identification. These tabs can be readily damaged because they are relatively small projections and the card stock is easily bent, and the size limits the amount of information which can be printed thereon.




In some applications, the most active file folders are stored in open top trays or boxes for easy access, but the same problems of identification and potential damage to the tab occurs.




Order form booklets are a form of document file which can present special problems in that it is sometimes desirable to place loose copies of documents therein, and these may fall out when the folder is removed from the storage area.




Moreover, many document folders employ paper board stock which is so flexible that the folder does not have sufficient stiffness to stand vertically without lateral support.




With the widespread use of computers and associated printers, label or file titles are frequently stored in computer memory and used to print identifying information on various documents. Generally, this requires printing of labels which are then adhered to the file folders and which are frequently damaged or fall off.




It is an object of the present invention to provide a method for imprinting a novel document folder in which multiple document can be readily assembled and stored and which is relatively rigid so that it is self-supporting in an upright position when stored against a vertical surface.




It is also an object to provide a novel document folder kit for use in such a method.




Another object is to provide such a document folder kit in which there is a portion of large area in a position which is visible in its stored position and upon which identifying indicia may be printed utilizing conventional computer printers.




SUMMARY OF THE INVENTION




It has now been found that the foregoing and related objects may be readily attained in a document folder for enclosing and retaining a multiplicity of documents comprising a cover formed of relatively flexible sheet material and having a back panel, a front panel and a spine hingedly connecting the panels. The panels are disposable in an overlying position and, together with the spine, provide an enclosure for receiving a multiplicity of documents therebetween, and the panels are movable relative to each other about the spine. Also included are a relatively rigid stiffener dimensioned cooperatively with the back panel to rigidify the folder when stored vertically so that it is self-supporting and document securing means engaged with the stiffener for securing a multiplicity of documents between the stiffener and the front panel.




Generally, the stiffener is substantially coextensive with the back panel, and conveniently it is adhesively engaged with the back panel. In some embodiments, the securing means comprises a fastener having a center portion with a pair of prongs at its ends which are adapted to extend through apertures in the stored documents. The center portion is conveniently mounted on the back panel and the prongs extend through apertures in the stiffener to secure it thereto.




In one embodiment, the back panel has an overlying flap along one side thereof and the fastener is secured to the overlying flap. The front panel is separately formed and has a flap along one side thereof which overlies the flap of the back panel, and the front panel flap has apertures therein through which the prongs extend.




In another embodiment, the center of the fastener portion is mounted on the stiffener which is adhered to the back panel.




In some embodiments, the cover is integrally formed. In others, the front and back panels are separate elements with the spine being integrally formed with one of the panels.




Other securing means include a clamp mounted on the stiffener, a ring binder element mounted on the stiffener, and a pocket forming element on the stiffener.




The spine may have a plurality of fold lines extending longitudinally thereof whereby the spine may be varied in width to vary the spacing between the panels.




Desirably, at least the spine is adapted to be imprinted with indicia viewable when stored in a file.




In some embodiments, the back panel has side flaps hingedly connected thereto along the side margins thereof and an end flap hingedly connected to its end opposite the spine, the side and end flaps being foldable into a position overlying the back panel to provide a pocket. The front panel may be releasably engageable with the end flap, and the side and end flaps may have a plurality of fold lines extending longitudinally thereof adjacent the back panel whereby the spacing between the overlying portions of the flaps and the back panel may be varied.




The folder may include a plurality of dividers for separating the documents on the stiffener into groupings. The center portion of the fastener may be adhesively engaged with the inner surface of the back panel and have its prongs extending through the stiffener.




Preferably, the folder is dimensioned so that it may be fed through a computer printer. The material from which the folder is formed should be printable in a computer printer. When the folder is formed of separate panels, at least the spine should be printable.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of a document folder embodying the present invention;





FIG. 2

is a plan view of the front face of the folder of

FIG. 1

;





FIG. 3

is a plan view of the rear face of the folder of

FIG. 1

;





FIG. 4

is a side elevational view of the folder of

FIG. 1

drawn to an enlarged scale;





FIG. 5

is an exploded view of the folder of

FIG. 1

with the front flap opened and the clamp element removed;





FIG. 6

is a schematic perspective view of a plurality of document folders of

FIG. 1

arranged vertically in a plurality of rows;





FIG. 7

is a plan view of the front face of another embodiment of the present invention;





FIG. 8

is a plan view of the opened folder of

FIG. 7

;





FIG. 9

is a partially diagrammatic view of a cover emerging from a fragmentarily illustrated computer printer wherein it has been imprinted with indicia;





FIG. 10

is a perspective view of a stiffener with a release paper strip partially removed to expose a stripe of adhesive;





FIG. 11

is a perspective view of the cover of

FIG. 9

with the stiffener of

FIG. 10

aligned with the back panel of the cover prior to engagement thereon;





FIG. 12

is a perspective view of the partially opened folder embodiment of

FIGS. 9-11

with a number of documents retained on the fastener within the folder;





FIG. 13

is an end elevational view of the folder of

FIG. 12

as stacked in an upright position;





FIG. 14

is a partially exploded perspective view of another embodiment of folder in which the fastener is secured to the back panel of the folder and extends upwardly through apertures in the stiffener;





FIG. 15

is an elevational view of the folder of

FIG. 14

with documents assembled therein;





FIG. 16

is another embodiment of the present invention in which the stiffener has a series of flaps formed thereon which are foldable into overlying position to provide a pocket in which documents are stored;





FIG. 17

is a partially exploded view of the insert of

FIG. 16

prior to engagement on the rear panel of the folder;





FIG. 18

is a perspective view of the closed folder of

FIGS. 16 and 17

;





FIG. 19

is a partially exploded perspective view of another embodiment of the folder utilizing a ring binder mounted upon the stiffener which is to be secured to the back panel by an adhesive stripe;





FIG. 20

is a partially exploded perspective view of still another embodiment of the folder of the present invention utilizing a stiffener which has adhered thereto an expandable pocket and which is to be secured to the back panel of the cover by an adhesive stripe;





FIG. 21

is a partially exploded view of another embodiment having a cover assembled from separate front and back panels;





FIG. 22

is a partially exploded view of the front panel of this embodiment showing the separated base element of the fastener;





FIG. 23

is a perspective view showing a stiffener embodiment which has flaps formed thereon which can be folded into overlying position to define a pocket in connection with the body portion of the stiffener and employing engageable closure elements on a flap of the stiffener and front panel;





FIG. 24

is a perspective view of the closed embodiment of

FIG. 23

;





FIG. 25

is a sectional view along the line


25


-


25


of

FIG. 21

;





FIG. 26

is a perspective view of another embodiment of the folder of the present invention utilizing a clamp type fastener for securing the documents to the stiffener and an adhesive stripe for securing the stiffener to the back panel of the cover;





FIG. 27

is a perspective view of another embodiment of the present invention in which the cover is assembled from separate front and back panels which have overlying flaps through which a fastener extends to join the panels in assembly;





FIG. 28

is another embodiment in which the fastener is mounted upon the insert and extends through a flap on the front panel to secure it in assembly;





FIG. 29

is a perspective view showing a number of folders embodying the present invention and printed along the spine, some of the folders being stacked in an upright position and others lying in a horizontal position; and





FIG. 30

is a fragmentary perspective view of a file drawer or carton in which a number of folders embodying the present invention are stored in upright position and have identifying indicia printed upon their spine.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




A document folder in accordance with the present invention is generally designated by the numeral


10


in FIG.


1


. The document folder


10


includes a cover generally designated by the numeral


11


with a back panel


12


and a front panel


14


. The back panel


12


and front panel


14


are movable relative to each other and connected to each other by means of the spine


16


at their upper ends. The cover


11


is fabricated from relatively flexible sheet material such as heavy gauge paper or paperboard, or plastic, e.g., a polyolefin or other resin which may be imprinted. Suitable indicia


18


may be provided on the front panel


14


for identifying the subject matter and/or date range of the documents contained within the folder. The spine


16


(and the panels) may also be imprinted with indicia


20


so that they are visible when the folder


10


is placed in a file.




As illustrated in

FIG. 2

, the front panel


14


may include a notched portion


22


. The notched portion


22


may be useful to thumb to a particular document or documents contained within the document folder


10


by, for example, indexing tabs or the like (not shown).




As shown in

FIGS. 1

,


3


and


6


, the back panel


12


and the front panel


14


include smooth outer surfaces


13


,


15


for ease in stacking the document folders


10


, e.g., in a container such as a filing cabinet (not shown). By stacking the document folders


10


in rows in the illustrated upright position, indicia


20


are viewable, and space in the file drawer or container is conserved. Referring to

FIG. 6

, the document folders may be stacked, e.g., in a plurality of rows in a storage container of suitable width whereby, because of the smooth outer surfaces of the back and front flaps


12


and


14


, individual document folders


10


may be readily inserted into, and removed from, a row as indicated by the arrow


23


.




The front cover and spine are imprintable using general purpose office equipment. This requirement limits the size, shape, thickness and other characteristics of the sheet material use. The shape of the material must be rectangular with straight contours to feed to squarely into the printer. The most popular office printers in the United States are limited in size to letter/legal size (8½″×14″) and tabloid (13″×19″) and in thickness to about 0.3 mm. The material cannot be rigid, and the surface of the material must not repel the ink or toner. Most office printers leave at least a ¼″ margin that cannot be imprinted, and this means that a ⅜″ spine should be well inside the edge of the sheet to ensure proper printing. Provided these constraints are met, any suitable material such as paper, plastic or parchment (leather) may be used for the entire cover, or the front panel and spine.




As best illustrated in

FIG. 5

, the spine


16


includes three fold lines


24


,


26


and


28


formed by scoring or other well known techniques. They provide for varying of the distance between the panels


12


,


14


to accommodate varying volumes of documents


30


(

FIG. 5

) within the document folder


10


. The first fold line


24


is disposed advantageously a short distance away from an upper edge


31


of the documents


30


so as to allow for ease in folding of the front flap


14


thereover. As the number of documents pinned in the folder increases, the additional fold lines


26


,


28


provide extra spacing. It will be appreciated that while three fold lines are shown for illustrational purposes, any suitable number may be employed.




As shown in

FIGS. 4 and 5

, the document folder


10


includes a stiffener


32


along with a plurality of document dividers


34


. The stiffener


32


may be formed of any suitable sheet material that is relatively rigid or inflexible such as a plastic, e.g., a polyolefin, or a heavier gauge paperboard or cardboard. The stiffener


32


is employed to support the document folder


10


to make it self-supporting when placed in an upright or vertical position against a vertical surface or between vertical surfaces such as like folders


10


as seen in

FIGS. 29 and 30

and as illustrated in FIG.


6


. It will be appreciated that the dimensions of the stiffening member


32


and the back panel


12


are approximately coextensive to prevent folding or creasing damage to the bottom edge


12




a


of back flap


12


when the document folder


10


is in the upright position shown in FIG.


6


. Also, by employing the stiffener


32


, the cover


11


may be integrally formed, or formed of separate panels, of relatively thin material.




The dividers


34


are advantageously provided for separating various groups of documents


30


based upon, for example, a category of various methods of payment such as house accounts, credit cards or cash as illustrated by indicia


35


. Physicians may separate tests from reports, etc.




A conventional two prong fastener generally designated by the numeral


36


, usually made of a metal or plastic, is employed for retaining the documents together on the back flap. It includes a base


38


, a pair of deformable prongs


40


and a clasp


42


. The base


38


is preferably mounted on the inner surface


44


of the back panel


12


by any suitable means such as an adhesive or tape which does not protrude through the back flap


12


. If elements of the fastener were to protrude through the back flap


12


, such elements would interfere with smoothly withdrawing and inserting individual document folders


10


from and into a tightly packed row, as illustrated in FIG.


6


. For this reason, front panel


14


as well as the back panel


12


are maintained smooth and free of protrusions of any kind. The clasp


42


includes apertures


48


and a groove


50


for receiving the prongs


40


. A pair of sliders


46


are disposed on the clasp


42


and are selectively movable to lock the prongs


40


in place. The stiffener


32


, dividers


34


and documents


30


include apertures


52


through which the prongs


40


extend for retention on the back panel


12


of the document folder


10


.




Turning next to

FIGS. 7 and 8

therein illustrated is another embodiment of the present invention which includes side and end flaps


60


,


62


to provide a four-sided enclosure for any loose documents which might also be stored in the folder


10


. In this embodiment, the back panel


12


has the side flaps


60


extending over most of the length thereof and provided with a series of fold lines


64


to enable adjustment of the width therebetween when folded over. Along the end of the back panel


12


opposite the spine portion


16


is the end flap


62


with a series of fold lines


66


and a series of parallel slits


68


therein.




In this embodiment, the front panel


14


is not coextensive with the back panel


12


and has a tab


70


formed at its free end which will, when the front panel


14


is folded over be engageable in one of the slits


68


. In addition to the documents


30


, loose papers


74


may be placed within the folder and will be retained therein by the side and end flaps


60


,


62


.




In subsequent illustrations, modifications of a previously numbered structural element may bear the same numeral but coupled with a letter modifier, e.g.,


11




a.






In

FIG. 9

, a cover


11




a


is seen exiting from the fragmentarily illustrated computer printer


80


wherein it has been printed with indicia


82


,


84


.




In

FIGS. 10 and 11

, there is illustrated an alternate embodiment for the folder


10


of the present invention in which the rigidifying stiffener


32


is secured to the back panel


12




a


by a stripe of adhesive


86


which is covered by a release paper strip


88


, and the two-prong fastener


36


has its base portion


38


adhered to the surface of the stiffener


32


. In

FIGS. 12 and 13

, there is illustrated the embodiment of

FIGS. 10 and 11

in which a number of documents


30


have been mounted upon the fastener


36


.




Turning next to

FIG. 14

, it is basically similar to the first embodiment of the present invention. The fastener


36


is adhered to the back panel


12




b


along its short side and the spine


16




b


extends along the long side of the back panel


12




b


. In

FIG. 15

, the embodiment of

FIG. 14

is shown with documents


30


therein and with the fastener


36


disposed in the upper most position and the spine


16




b


extending along vertically the side opposite that presented in the drawing.




Turning next to

FIGS. 16 and 17

, another embodiment of the folder of the present invention has the stiffener


32




c


formed with flaps


90


along three of its sides and it is provided with a stripe of adhesive


92


along its body portion. A release paper strip


94


covers the adhesive


92


until such time as it is desired to mount the stiffener


32




c


on the back panel


12




c


of the cover


11




c


. In this embodiment the documents


30


(not shown) are stored and held in position within the folder by the flaps


90


. The closed document folder is illustrated in FIG.


18


.




In

FIG. 19

, there is illustrated an embodiment in which a 3-ring binder


96


is mounted upon the stiffener


32


which in turn is mounted upon the back panel


12




d


by an adhesive stripe (not shown) which is covered by the release paper strip


88


.





FIG. 20

shows still another embodiment in which an expandable pocket


100


is adhesively bonded to the surface of the stiffener


32


which in turn is adhesively secured to the back panel


12




e


of the cover


11




e.






Turning next to

FIG. 21

, there in illustrated is a modification of the embodiment of

FIGS. 16 and 17

wherein the cover


11




f


is fabricated from separate panel elements


12




f


,


14




f


with the front panel


14




f


providing the spine


16




f


and an inturned flap


104


by which it is secured to the stiffener


32




f


by a stripe of adhesive


106


. As seen, the flap


104


has mounted thereon a fastener


36


to be utilized for the binding of the documents within the folder.




In

FIG. 22

, the base element of the fastener


36


can be seen separated from its clamp. The flap


108


on the front panel


14




f


has a pair of apertures


110


through which the prongs


40


extend. The flap


108


and the fastener


36


are secured to the stiffener


32


by adhesive


106


.




The embodiment of

FIGS. 23-25

is similar to that of

FIGS. 15-17

except that the flap


90




a


is provided with a hook and loop fastener


120


which cooperates with a hook and loop fastener


122


on the inside surface of the front panel.





FIG. 26

shows a clamp fastener


112


mounted upon the stiffener


32


.





FIG. 27

shows another embodiment in which both panels


14




h


and


12




h


are separately formed and joined together by the fastener


36


. The back panel


12




h


has an inturned flap


108


with apertures


120


through which the prongs of the fastener


36


extend. The prongs also extend through apertures


110


in the stiffener


32


and through an inturned flap


114


on the end of the spine


16




h


which is integrally formed with the front panel


14




h


. In the illustration, the clamp has been omitted for clarity.





FIG. 28

is still another embodiment utilizing a separately formed front panel


14




j


with a flap


114


formed as in the prior embodiment and through which the prongs of the fastener


36


extend. However, in this instance the fastener


36


is secured to the surface of the stiffener


32


.




Turning lastly to

FIGS. 29 and 30

, therein illustrated are folders produced in accordance with the present invention in which the spines


16


have been imprinted with indicia


20


. These folders can be stored in an upright position on a shelf or table


118


as seen in

FIG. 29

or in a box or drawer


120


as seen in FIG.


30


.




The cover stock preferably a lightweight paperboard material such as the manila stock conventionally employed for manila folders. As has been previously indicated, the front and back panels can be formed integrally with the spine connecting them or they may be formed as separate elements with the spine formed as a component of one of them. If they are separate elements, one of the elements can be made of a printable paperboard or plastic stock and the other from a different material which may not be so readily imprinted and which may have a feature such as transparency for a particular application.




As will be appreciated, the covers and inserts may be separately stored and shipped, and assembled only after the cover has been printed. This enables substantial savings of time and money over a preassembled structure and also enables feeding the flexible cover through a printer.




Although the invention has been described in detail with reference to particular embodiments thereof, it will be apparent that upon a reading and understanding of the foregoing, numerous alterations to the described embodiments will occur to those skilled in the art and it is intended to include such alterations within the scope of the appended claims.




Thus, it can be seen from the foregoing detailed description and attached drawings that the document folder of the present invention provides a self-supporting structure which can be stacked in a vertical position, and which is easily removed from, and inserted into, a large number of such folders. The cover may be formed of relatively flexible and inexpensive paperboard stock, and is coupled with a relatively rigid member which can be fabricated from relatively rigid paperboard, plastic or other materials and assembled with the cover when the folder is placed into use. The spine connecting the covers is readily imprinted with indicia so as to allow facile identification of the contents of the folders when placed in a stack either horizontally or vertically.



Claims
  • 1. A document folder for enclosing and retaining a multiplicity of documents comprising:(a) a front cover element formed of relatively flexible sheet material and having a front panel and a spine hingedly connecting to said front panel, and a back panel element having a back panel, said panels being disposable in an overlying position and together with said spine providing an enclosure for receiving a multiplicity of documents therebetween, said spine being formed integrally with said front panel, said panels being movable relative to each other about said spine, the material of at least said spine and cover being imprintable; (b) a separately formed relatively rigid stiffener element dimensioned cooperatively with said back panel to rigidify said folder when stored vertically so that said folder is self-supporting when placed against and between vertical surfaces and will not collapse under its own weight; and (c) document securing means for securing a multiplicity of documents said stiffener element being secured in assembly with one of said back panel and stiffener element.
  • 2. The document folder in accordance with claim 1 wherein said stiffener element is substantially coextensive with said back panel.
  • 3. The document folder in accordance with claim 1 wherein said document securing means comprises a fastener having a center portion with a pair of prongs at its ends which extend through apertures in the stored documents.
  • 4. The document folder in accordance with claim 1 wherein said front cover element and back panel element are integrally formed.
  • 5. The document folder in accordance with claim 1 wherein said front cover element and back panel element are separate elements and said spine is integrally formed with said front panel.
  • 6. The document folder in accordance with claim 1 wherein said document securing means is a clamp mounted on said stiffener element.
  • 7. The document folder in accordance with claim 1 wherein said document securing means is a ring binder element mounted on said stiffener element.
  • 8. The document folder in accordance with claim 1 wherein said document securing means comprises a pocket forming element on said stiffener element.
  • 9. The document folder in accordance with claim 1 wherein said spine has a plurality of fold lines extending longitudinally thereof whereby said spine may be varied in width to vary the spacing between said panels.
  • 10. An imprintable document folder for enclosing and retaining a multiplicity of documents comprising:(a) a single ply front cover element formed of relatively flexible sheet material and having a front panel and a spine hingedly connected thereto, the material of said front cover element being imprintable in an office printer; (b) a back cover element providing a back panel and secured to said spine, said front and back panels being disposable in an overlying position and together with said spine providing an enclosure for receiving a multiplicity of documents therebetween, said panels being movable relative to each other about said spine; (c) a relatively rigid stiffening means disposed on the inner surface of said back panel and dimensioned cooperatively with said back panel to rigidify said folder when stored vertically so that it is self-supporting when placed against and between vertical surfaces and will not collapse under its own weight; and (d) document securing means for securing a multiplicity of documents in said enclosure of said folder.
  • 11. The imprintable document folder in accordance with claim 10 wherein there is included a coupling flap on said spine of said front cover element engageable with said back panel to secure said back panel to said spine.
  • 12. The imprintable document folder in accordance with claim 10 wherein there is included at least one flap extending along at least one side of said back panel and foldable over said back panel to provide said stiffening means.
  • 13. The imprintable document folder in accordance with claim 10 wherein said back panel element has flaps on three free sides of said back panel foldable over said back panel to provide said securing means.
CROSS REFERENCE TO RELATED APPLICATION

The present application is a continuation-in-part of my application Ser. No. 09/292,030 filed Apr. 16, 1999 which is now abandoned, a continuation of my application Ser. No. 09/741,606 filed Dec. 19, 2000 now U.S. Pat. No. 6,461,070 which will issue on Oct. 8, 2002, which is a continuation-in-part of application Ser. No. 09/200,438 filed Nov. 27, 1998 which is now abandoned, and which claims the benefit of Provisional Application Serial No. 60/067,957 filed Dec. 8, 1997.

US Referenced Citations (21)
Number Name Date Kind
754048 Bushnell, Jr. Mar 1904 A
3026876 Peynado Mar 1962 A
3466133 Lennartz Sep 1969 A
5087162 Basler Feb 1992 A
5104250 Pacione Apr 1992 A
5174556 Taylor et al. Dec 1992 A
5213433 An May 1993 A
5236121 Wollman et al. Aug 1993 A
5407230 Brink et al. Apr 1995 A
5445468 Pacione Aug 1995 A
5562309 Brink et al. Oct 1996 A
5607246 Podosek Mar 1997 A
5613791 Mendenica Mar 1997 A
5711627 Chapman Jan 1998 A
5720565 Benson Feb 1998 A
5724075 Smith Mar 1998 A
5897141 Dugmore et al. Apr 1999 A
5961150 Kogutt et al. Oct 1999 A
6017164 Abbott Jan 2000 A
6236767 Altman May 2001 B1
6461070 Rew Oct 2002 B2
Provisional Applications (1)
Number Date Country
60/067957 Dec 1997 US
Continuations (1)
Number Date Country
Parent 09/741606 Dec 2000 US
Child 10/266014 US
Continuation in Parts (3)
Number Date Country
Parent 09/200438 Nov 1998 US
Child 09/741606 US
Parent 10/266014 US
Child 09/741606 US
Parent 09/292030 Apr 1999 US
Child 10/266014 US