Deadbolt knob and doorknob engaging security unit

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top, front, and left side perspective view of a deadbolt knob and doorknob engaging security unit showing my new design;

FIG. 2 is an enlarged rear elevational view thereof;

FIG. 3 is an enlarged left side elevational view thereof;

FIG. 4 is an enlarged right side elevational view thereof;

FIG. 5 is an enlarged top plan view thereof; and,

FIG. 6 is an enlarged bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
591177 October 1897 Palmer
1082427 December 1913 Klespies
2463195 July 1946 Mungan
3263462 March 1964 Suroff et al.
3423974 July 1966 Bernsley
3585827 June 1971 Dominguez
3724246 April 1973 Katsaros
3927544 December 1975 Klein
3933014 January 20, 1976 Moses
4064721 December 27, 1977 Morgan
4082334 April 4, 1978 Volta et al.
4189176 February 19, 1980 Hamilton
4279137 July 21, 1981 Cook
4605251 August 12, 1986 Finlay
4715200 December 29, 1987 Katsaros
Foreign Patent Documents
15009 April 1880 DE2
454672 October 1936 GBX
Patent History
Patent number: D334703
Type: Grant
Filed: Mar 1, 1991
Date of Patent: Apr 13, 1993
Inventor: Jerry A. Murphy (Scottsdale, AZ)
Primary Examiner: Brian N. Vinson
Attorney: David G. Rosenbaum
Application Number: 7/662,895
Classifications
Current U.S. Class: D/8331; D/8343