Smoke detector

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Information

Patent Grant
D279769

References
Source

Patent Number
D279,769
Date Filed
Friday, August 19, 1983
41 years ago
Date Issued
Tuesday, July 23, 1985
39 years ago

Inventors
- Hugh P. Thornton Jr.
- Robert B. Powers
Original Assignees
- American District Telegraph Company
Examiners
- Bullock; B. J.
- Gitlin; Suzanne N.
Agents
- Grover; James H.

US Classifications
- D10 - Measuring, testing, or signalling instruments
Field of Search
- US
- D10 104
- D10 106
- D10 121
- 340 628
- 340 629
- 340 630
- 340 695
- Term of Grant
  14Years

Information

Abstract

Description

Claims

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

US Referenced Citations (3)

Number	Name	Date	Kind
D246635	Boldt et al.	Dec 1977
D249481	Conforte et al.	Sep 1978
4099178	Ranney et al.	Jul 1978

Non-Patent Literature Citations (2)

Entry
Honeywell, 9/1978, front of article, Smoke Detector in middle right side.
Hareware Age, 7/1978, p. 133, Smoke alarm, Model #SM870, located in lower right corner.