Transverse traction tread for vehicle tires

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Description

FIG. 1 is a top plan view of a transverse traction tread for vehicle tires showing my new design;

FIG. 2 is a front elevational view thereof, the back view, not shown, being identical thereto; and

FIG. 3 is a bottom plan view thereof.

The ends of the transverse traction tread are substantially flat and unornamented.

Referenced Cited
U.S. Patent Documents
3856068 December 1974 Callaghan et al.
Foreign Patent Documents
481,360 May 1953 IT
Other references
  • Popular Science, 11/73, p. 98, Sno-Treds, top left side of page.
Patent History
Patent number: D247291
Type: Grant
Filed: Aug 12, 1976
Date of Patent: Feb 21, 1978
Assignee: Polytech Industries Inc. (Woodenville, WA)
Inventor: Harry M. Gilmartin (Bellevue, WA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: James M. Gandy
Attorney: Roy E. Mattern, Jr.
Application Number: 5/713,847
Classifications
Current U.S. Class: D12/154
International Classification: D1216;