Hydraulic jack
United States Patent D571072
US Patent References:
Hydraulic jack
Eliasson - July, 1984 - D274668

Hydraulic jack
Hung - January, 1991 - D313492

Jack
Chang - October, 2001 - D449915

Power unit for use with a jack stand that is convertible into a load-lifting jack
Arzouman - January, 2006 - 6986503

Quad caster jack apparatus
Hernandez - February, 2007 - D537225


Inventors:
Kong, Shuyong (Zhejiang, CN)
Jiang, Changgen (Zhejiang, CN)
Wang, Jihui (Zhejiang, CN)
Application Number:
D/288352
Publication Date:
06/10/2008
Filing Date:
06/08/2007
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Assignee:
Kong, Zhaogen (Zhejiang, CN)
Primary Class:
D34/31
International Classes:
(IPC1-7): 1205
Field of Search:
D34/31, 254/DIG.8, 254/873, D34/28, 254/93H, 254/DIG.3, 254/2B, 254/45, 254/11
Primary Examiner:
Ramirez, Cynthia E.
Attorney, Agent or Firm:
Chan, Raymond Y.
David and Raymond Patent Firm
Claims:
CLAIM

1. The ornamental design for a hydraulic jack, as shown and described.

Description:

FIG. 1 is a perspective view of a hydraulic jack showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right end view thereof;

FIG. 5 is a left end view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.