Claims
- 1. A flexible visible index strip of multiple ply construction which has smooth edges and comprises a first, strong, flexible ply composed of a fibrous, cellulosic mat impregnated with from 25 to 75 percent by weight of a partially cured, resin modified, cross-linked ureaformaldehyde resin; a second ply made of paper; and means bonding said second ply in face-to-face relationship with said first ply and leaving exposed a surface of the second ply on which selected information can be placed.
- 2. A visible index strip of multiple ply construction as defined in claim 1 which has a third ply made of paper and means permanently so bonding said third ply in face-to-face relationship to said first ply on the opposite side thereof from the second ply as to impart flexibility and strength to the index strip.
Parent Case Info
The present invention is a continuation of application Ser. No. 795,881 filed May 11, 1977 now abandoned. The latter is a division of application Ser. No. 505,078 filed Sept. 11, 1974 (now abandoned).
US Referenced Citations (6)
Non-Patent Literature Citations (1)
Entry |
Datamark, Data Processing Labels, pp. 1-4, Datamark Inc., Cleveland, Ohio, Nov. 1967. |
Divisions (1)
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Number |
Date |
Country |
Parent |
505078 |
Sep 1974 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
795881 |
May 1977 |
|