IP Library › Granted Patent US 4,819,624
Granted Patent Utility
US 4,819,624 · App. 07/064,173

Banded earplug

Inventors: Howard S. Leight, Charles Leight, Frederic A. Leight
Patented Case View Patent ↗
Granted: Apr 11, 1989 Filed: Jun 18, 1987
Inventors
Howard S. Leight
Charles Leight
Frederic A. Leight

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Quick Facts
Patent No.
US 4,819,624
App. No.
07/064,173
Filed
1987-06-18
Granted
1989-04-11
Kind
A