Bicycle drive chain guide

Description

FIG. 1 is a perspective view of the bicycle drive chain guide showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear-elevational view thereof;

FIG. 4 is an end elevational view thereof;

FIG. 5 is an opposite end elevational view thereof;

FIG. 6 is a top-plan view thereof; and

FIG. 7 is a bottom-plan view thereof.

Referenced Cited
U.S. Patent Documents
D248035 May 30, 1978 Brightbill et al.
D296884 July 26, 1988 Coue
648159 April 1900 Bartsch
3346156 October 1967 Jones
3486727 December 1969 Timms
3813957 June 1974 Hurst et al.
4339060 July 13, 1982 Braida, Jr.
4507105 March 26, 1985 Slottmann et al.
4639240 January 27, 1987 Liu
4832667 May 23, 1989 Wren
Foreign Patent Documents
0175827 March 1922 GBX
Other references
  • American Bicyclist & Motorcyclist, Aug. 1988, p. 29, the Bicycle Chain Guide No. 7620.
Patent History
Patent number: D321334
Type: Grant
Filed: Dec 14, 1989
Date of Patent: Nov 5, 1991
Inventor: John W. Greenlaw (Clayton, CA)
Primary Examiner: James M. Gandy
Assistant Examiner: Melody Brown
Law Firm: Bruce & McCoy
Application Number: 7/450,843
Classifications