Combination step ladder, hand truck and dolly device

Information

  • Patent Grant
  • D524505
  • Patent Number
    D524,505
  • Date Filed
    Wednesday, June 2, 2004
    20 years ago
  • Date Issued
    Tuesday, July 4, 2006
    18 years ago
  • US Classifications
    Field of Search
    • US
    • D34 12- 27
    • 182 016000
    • 182 020000
    • 182 102000
    • 182 103000
    • 182 127000
    • 280 030000
    • 280 047280
    • 280 037000
    • 280 079110
    • 280 079300
    • 190 107000
    • 190 103000
    • 190 115000
    • 190 127000
  • International Classifications
    • 1202
    • Term of Grant
      14Years
Abstract
Description

FIG. 1 is a perspective view of a preferred embodiment of the combination step ladder, hand truck and dolly device of the present invention in a step ladder configuration;


FIG. 2 is a side elevational view of the device of FIG. 1;


FIG. 3 is a front elevational view of the device of FIG. 1;


FIG. 4 is a rear elevational view of the device of FIG. 1;


FIG. 5 is a top plan view of the device of FIG. 1;


FIG. 6 is a bottom plan view of the device of FIG. 1; and


FIG. 7 is a perspective view of the device of FIG. 1, shown in a dolly configuration;


FIG. 8 is a top plan view of the device of FIG. 7;


FIG. 9 is a bottom plan view of the device of FIG. 7;


FIG. 10 is a rear elevational view of the device of FIG. 7;


FIG. 11 is a front elevational view of the device of FIG. 7;


FIG. 12 is a side elevational view of the device of FIG. 7;


FIG. 13 is a perspective view of the device of FIG. 1, shown in a hand truck configuration;


FIG. 14 is a front elevational view of the device of FIG. 13;


FIG. 15 is a rear elevational view of the device of FIG. 13;


FIG. 16 is a side elevational view of the device of FIG. 13;


FIG. 17 is a top plan view of the device of FIG. 13; and,


FIG. 18 is a bottom plan view of the device of FIG. 13.


Claims
  • I claim the ornamental design for the combination step ladder, hand truck and dolly device, as shown and described.
US Referenced Citations (22)
Number Name Date Kind
300496 Nelson Jun 1884 A
867754 Randall Oct 1907 A
2919138 Brower et al. Dec 1959 A
2990764 Wilder Jul 1961 A
3430972 Fiedler Mar 1969 A
3434566 Miller Mar 1969 A
3857460 Nini Dec 1974 A
3954155 Guidara May 1976 A
D249032 Tarran Aug 1978 S
4258826 Murray Mar 1981 A
4448282 Giezendanner May 1984 A
4494626 Ast Jan 1985 A
4934485 Purkapile Jun 1990 A
5368143 Pond et al. Nov 1994 A
5382032 Wilson Jan 1995 A
5749446 Hsieh May 1998 A
5836595 Brice Nov 1998 A
6158749 Roudebush Dec 2000 A
6474663 Becker Nov 2002 B1
6530583 Mueller Mar 2003 B1
6651774 Yoo Nov 2003 B1
20040065518 Hoberman Apr 2004 A1