Lifting jack

- Ashok Kumar Shetty

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Description

FIG. 1 is a front perspective view of one end of a lifting jack showing my new design;

FIG. 2 is a front perspective view thereof of the end opposite to that shown in FIG. 1;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a rear perspective view thereof.

Referenced Cited
U.S. Patent Documents
D196791 November 1963 Knight
D216191 December 1969 Parker
D219297 November 1970 Clay
3677518 July 1972 Buys
Foreign Patent Documents
469,355 November 1950 CA
1,374,113 August 1964 FR
Other references
  • 1971 Tread Design Guide, p. 152, Giant Stop Skid Tire, top left side of page. 1971 Tread Design Guide, p. 162, LeHavre Mud & Snow Tire, center left side of page. 1971 Tread Design Guide, p. 193, Firestone Ground Grip Non-Directional Tire, bottom right side of page.
Patent History
Patent number: D242910
Type: Grant
Filed: Mar 12, 1975
Date of Patent: Jan 4, 1977
Assignee: Ashok Kumar Shetty
Inventor: Velu K. K. Dasan (Madras)
Primary Examiner: Susie J. Mercer
Assistant Examiner: James M. Gandy
Attorney: Robert J. Doherty
Application Number: 5/557,626
Classifications
Current U.S. Class: D12/55
International Classification: D1205;