IP Library › Granted Patent US 4,801,196
Granted Patent Utility
US 4,801,196 · App. 06/776,140

Wide angle projection lens

Inventor: Ellis I. Betensky
Patented Case View Patent ↗
Granted: Jan 31, 1989 Filed: Sep 13, 1985
Inventor
Ellis I. Betensky
Assignee (at issue)
U.S. Precision Lens Incorporated

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Quick Facts
Patent No.
US 4,801,196
App. No.
06/776,140
Filed
1985-09-13
Granted
1989-01-31
Kind
A