IP Library › Granted Patent US 5,979,451
Granted Patent Utility
US 5,979,451 · App. 07/451,199

Earmuff sound protector

Inventor: Howard S. Leight
Patented Case View Patent ↗
Granted: Nov 9, 1999 Filed: Dec 15, 1989
Inventor
Howard S. Leight
Assignee (at issue)
Howard S. Leight and Associates, Inc.

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Quick Facts
Patent No.
US 5,979,451
App. No.
07/451,199
Filed
1989-12-15
Granted
1999-11-09
Kind
A