IP Library › Granted Patent US 4,870,394
Granted Patent Utility
US 4,870,394 · App. 07/149,423

Smoke detector with improved testing

Inventors: John L. Corl, Gregory Scott Triplett
Patented Case View Patent ↗
Granted: Sep 26, 1989 Filed: Jan 29, 1988
Inventors
John L. Corl
Gregory Scott Triplett
Assignee (at issue)
Systron Donner Corporation

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Quick Facts
Patent No.
US 4,870,394
App. No.
07/149,423
Filed
1988-01-29
Granted
1989-09-26
Kind
A