Tire traction unit
Description
FIG. 1 is a top perspective view of a tire traction unit showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a side elevation view thereof, the opposite side being a mirror image of that shown;
FIG. 4 is a bottom plan view thereof; and,
FIG. 5 is an end elevation view thereof.
The tire traction unit has been shown broken away in the middle in FIGS. 2, 3, and 4 for convenience of illustration.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
| D230017 | January 1974 | Pfoertner |
| D241734 | October 1976 | Pfoertner |
| 3431961 | March 1969 | Pfoertner |
| 3512613 | May 1970 | Peterson |
| 3770039 | November 1973 | Pfoertner |
| 4266593 | May 12, 1981 | Hayashi |
| 4280544 | July 28, 1981 | White |
| 4300722 | November 17, 1981 | Simmons |
| 4346748 | August 31, 1982 | Bagoy et al. |
| 4960160 | October 2, 1990 | Stacy |
| 3038010 | February 1988 | JPX |
Patent History
Patent number: D325896
Type: Grant
Filed: May 15, 1990
Date of Patent: May 5, 1992
Inventor: Rolf Pfoertner (Langley, British Columbia, V3A 4P4)
Primary Examiner: James M. Gandy
Assistant Examiner: Melody Brown
Law Firm: Bull, Housser & Tupper
Application Number: 7/524,061
Type: Grant
Filed: May 15, 1990
Date of Patent: May 5, 1992
Inventor: Rolf Pfoertner (Langley, British Columbia, V3A 4P4)
Primary Examiner: James M. Gandy
Assistant Examiner: Melody Brown
Law Firm: Bull, Housser & Tupper
Application Number: 7/524,061
Classifications
Current U.S. Class:
D12/154