Coupler lock

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Description

FIG. 1 is a perspective view of a coupler lock showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a front plan view thereof; and,

FIG. 7 is a rear plan view thereof.

Referenced Cited
U.S. Patent Documents
3982413 September 28, 1976 Stone et al.
4774823 October 4, 1988 Callison
5136863 August 11, 1992 Richardson
5195339 March 23, 1993 Nee et al.
Other references
  • The Sporting Goods Dealer, Aug. 1974, p. 119, "Exclusive Trailer Lock".
Patent History
Patent number: D350054
Type: Grant
Filed: Jun 22, 1992
Date of Patent: Aug 30, 1994
Assignee: Fulton Performance Products, Inc. (Mosinee, WI)
Inventor: Karl E. Richter (Muskego, WI)
Primary Examiner: Brian N. Vinson
Attorneys: Edgar A. Zarins, Malcolm L. Sutherland
Application Number: 7/903,536
Classifications
Current U.S. Class: D/8331; D/8343