Door locking chain


FIG. 1 is an isometric view of a door locking chain showing my new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a left side elevational view thereof.

FIG. 4 is a right side elevational view thereof.

FIG. 5 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
3738694 June 1973 Banse
Foreign Patent Documents
226648 October 1958 AUX
28826 June 1907 DE2
Patent History
Patent number: D256551
Type: Grant
Filed: Jul 31, 1978
Date of Patent: Aug 26, 1980
Inventor: Clay M. Webb (Phoenix, AZ)
Primary Examiner: James M. Gandy
Attorney: Herbert E. Haynes, Jr.
Application Number: 5/929,687
Current U.S. Class: D/8340
International Classification: D0807;