IP Library › Granted Patent US 4,621,377
Granted Patent Utility
US 4,621,377 · App. 06/710,995

Helmet assembly

Inventor: David N. Pennell
Patented Case View Patent ↗
Granted: Nov 11, 1986 Filed: Mar 12, 1985
Inventor
David N. Pennell
Assignee (at issue)
Figgie Inernational Inc.

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Quick Facts
Patent No.
US 4,621,377
App. No.
06/710,995
Filed
1985-03-12
Granted
1986-11-11
Kind
A