Dropbolt lock

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Information

Patent Grant
D324480

References
Source

Patent Number
D324,480
Date Filed
Thursday, March 22, 1990
35 years ago
Date Issued
Tuesday, March 10, 1992
33 years ago

Inventors
- Stevie C. Roop
- Peter H. FIELD
Original Assignees
- MEDECO SECURITY LOCKS, INC.
Examiners
- Vinson; Brian N.
Agents
- Rothwell, Figg, Ernst & Kurz

US Classifications
- D08 - Tools and hardware
Field of Search
- US
- D08 330-331
- D08 336
- D08 338
- D08 339
- D08 341
- 070 91
- 070 101-104
- 070 113
- 070 118
- 070 124
- 070 129
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a dropbolt lock, as shown and described.

US Referenced Citations (6)

Number	Name	Date	Kind
D50286	Segal	Feb 1917
D242840	Schmidt	Dec 1976
D285772	Oliver	Sep 1986
D297109	Christie	Aug 1988
3760619	Colombo	Sep 1973
4067212	Vorob	Jan 1978

Non-Patent Literature Citations (2)

Entry
Yale Europa Brochure, date unknown, but prior to 1986.
The New England Lock and Hardware Co., catalogue page, date unknown (prior to 1966).