Smoke detector

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Information

Patent Grant
D306409

References
Source

Patent Number
D306,409
Date Filed
Monday, December 8, 1986
39 years ago
Date Issued
Tuesday, March 6, 1990
36 years ago

Inventors
- Darrell Fish
Original Assignees
- Universal Security Instruments, Inc.
Examiners
- Lucas; Susan J.
Agents
- Rose; Howard L.

US Classifications
- D10 - Measuring, testing, or signalling instruments
Field of Search
- US
- D10 104
- D10 106
- D10 116
- D10 121
- 340 521
- 340 540-546
- 340 555
- 340 556
- 340 557
- 340 565-578
- 340 584
- 340 600
- 340 628
- 340 629
- 340 630
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a smoke detector, as shown and described.

US Referenced Citations (12)

Number	Name	Date	Kind
D240120	Pasquarette	Jun 1976
D262868	Westphal	Feb 1982
D262952	Hanig	Feb 1982
D269161	Fenne	May 1983
D269331	Fenne	Jun 1983
D269332	Fenne	Jun 1983
D271287	Fenne	Nov 1983
D271670	Takai et al.	Dec 1983
D275187	Skarman	Aug 1984
D284748	Fenne	Jul 1986
3500368	Abe	Mar 1970
3903419	Lehsten	Sep 1975

Non-Patent Literature Citations (1)

Entry
Graviner Fire Protection Systems Catalog, 1978, p. 2, fixed temperature detector.