IP Library › Granted Patent US 4,808,501
Granted Patent Utility
US 4,808,501 · App. 07/050,743

Method for manufacturing an optical filter

Inventor: Carl A. Chiulli
Patented Case View Patent ↗
Granted: Feb 28, 1989 Filed: May 15, 1987
Inventor
Carl A. Chiulli
Assignee (at issue)
Polaroid Corporation, Patent Dept.

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Quick Facts
Patent No.
US 4,808,501
App. No.
07/050,743
Filed
1987-05-15
Granted
1989-02-28
Kind
A