IP Library › Granted Patent US 4,645,290
Granted Patent Utility
US 4,645,290 · App. 06/569,739

Selective color filter

Inventor: Peter J. Walsh
Patented Case View Patent ↗
Granted: Feb 24, 1987 Filed: Jan 10, 1984
Inventor
Peter J. Walsh
Assignee (at issue)
Duro-Test Corporation

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Quick Facts
Patent No.
US 4,645,290
App. No.
06/569,739
Filed
1984-01-10
Granted
1987-02-24
Kind
A