IP Library › Granted Patent US 4,434,794
Granted Patent Utility
US 4,434,794 · App. 06/273,367

Disposable ear plug

Inventor: Howard S. Leight
Patented Case View Patent ↗
Granted: Mar 6, 1984 Filed: Jun 15, 1981
Inventor
Howard S. Leight

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Quick Facts
Patent No.
US 4,434,794
App. No.
06/273,367
Filed
1981-06-15
Granted
1984-03-06
Kind
A