Title:
Lifting jack
United States Patent D345843
US Patent References:
/0066170.html
Patterson - June, 1867 - 0066170

/0829344.html
Larsen - August, 1906 - 0829344

Low lift attachment for hydraulic jacks
Thompson - May, 1949 - 2469670

Jack converter attachment
Hughes - January, 1951 - 2536550

Adjustable jack head
Bottorff - March, 1957 - 2786649


Inventors:
Collins, Harvey C. (7143 S. River Rd., Marine City, MI, 48039)
Application Number:
D/866239
Publication Date:
04/05/1994
Filing Date:
04/08/1992
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Primary Class:
D34/31
Other Classes:
D34/28
Field of Search:
254/133R, 254/DIG.4, 254/8B, D34/28, D34/31
US Patent References:
2786650Invertible lift member with slidable jack headMarch, 1957Bottorff
2910270Household utility jackOctober, 1959Schultz
3081066Hydraulic elevating and prying apparatusMarch, 1963Murawski
3426752CAST SPREADER AND BREAKERFebruary, 1969Laico
3662994PUSH-PULL JACK APPARATUSMay, 1972Johns
4194726Concrete lifterMarch, 1980Hance
4640495Device for moving an automobile with disabled wheelsFebruary, 1987Parsons254/8B
4846443Floor covering installation toolJuly, 1989Collins et al.254/133R
5190265Vehicle service toolMarch, 1993Barry et al.254/8B
Primary Examiner:
Chin, Kay H.
Attorney, Agent or Firm:
Harness, Dickey & Pierce
Claims:
1. The ornamental design for a lifting jack, as shown and described.

Description:

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

FIG. 2 is a top, rear and side perspective view thereof;

FIG. 3 is a side elevational view thereof, the opposite side elevational view being a mirror image of that shown;

FIG. 4 is an exploded front perspective view of the lifting assembly. The reaming portion of the lifting jack being omitted for convenience of illustration; and,

FIG. 5 is a top plan view thereof.