Dropbolt lock

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

FIG. 1 is a top, front, and right side perspective view of a dropbolt lock showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a top plan view thereof, the bottom being a mirror image of that shown.

Referenced Cited
U.S. Patent Documents
D50286 February 1917 Segal
D242840 December 28, 1976 Schmidt
D285772 September 23, 1986 Oliver
D297109 August 9, 1988 Christie
3760619 September 1973 Colombo
4067212 January 10, 1978 Vorob
Other references
  • Yale Europa Brochure, date unknown, but prior to 1986. The New England Lock and Hardware Co., catalogue page, date unknown (prior to 1966).
Patent History
Patent number: D324480
Type: Grant
Filed: Mar 22, 1990
Date of Patent: Mar 10, 1992
Assignee: Medeco Security Locks, Inc. (Salem, VA)
Inventors: Stevie C. Roop (Dugspur, VA), Peter H. Field (Salem, VA)
Primary Examiner: Brian N. Vinson
Law Firm: Rothwell, Figg, Ernst & Kurz
Application Number: 7/498,144
Classifications
Current U.S. Class: D/8341