Trolley jack

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Description

FIG. 1 is a perspective view showing the design of a trolley jack with a handle wherein a lift bar is shown in broken lines.

FIG. 2 is a top plan view thereof.

FIG. 3 is a left side elevational view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a front elevational view thereof.

The broken line showing of the handle in FIG. 1 is for illustrative purposes only and forms no part of the claimed design.

Claims

We claim the ornamental design for a trolley jack, as shown and described.

Referenced Cited
U.S. Patent Documents
D109498 May 1938 Pfauser
D109499 May 1938 Pfauser
4018421 April 19, 1977 Tallman
D253696 December 18, 1979 Suzuki
4241899 December 30, 1980 Kaneko
4251056 February 17, 1981 Maniglia
4277048 July 7, 1981 Okuda
4289298 September 15, 1981 Kameda
D263128 February 23, 1982 Glover, Jr. et al.
D272670 February 14, 1984 Tsujimura
4635902 January 13, 1987 Chou
D296598 July 5, 1988 Hung
4765593 August 23, 1988 Hung
4846443 July 11, 1989 Collins et al.
4850568 July 25, 1989 Hung
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D332337 January 5, 1993 Wang
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D364026 November 7, 1995 Hung
5551668 September 3, 1996 Hung
D398730 September 22, 1998 Lin
5878996 March 9, 1999 Loan
D416370 November 9, 1999 Hung
D421516 March 7, 2000 Hung
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D442345 May 15, 2001 Lee et al.
D444606 July 3, 2001 Hsu
Patent History
Patent number: D454419
Type: Grant
Filed: Jan 12, 2001
Date of Patent: Mar 12, 2002
Assignee: Test Rite Products Corporation (Buena Park, CA)
Inventors: Judy Lee (Kowloon), Johnny Chang (Redmond, WA)
Primary Examiner: Cynthia E. Ramirez
Attorney, Agent or Law Firms: Sheppard, Mullin, Richter & Hampton LLP, James R. Brueggemann
Application Number: 29/135,536
Classifications
Current U.S. Class: Jack Or Jackstand (D34/31)
International Classification: 1205;