IP Library › Granted Patent US 4,559,897
Granted Patent Utility
US 4,559,897 · App. 06/718,183

Hydrophilic lens tinting and coloring apparatus

Inventors: Peter D. Urrea, Geoffrey W. Doris, Stephen D. Newman
Patented Case View Patent ↗
Granted: Dec 24, 1985 Filed: Mar 29, 1985
Inventors
Peter D. Urrea
Geoffrey W. Doris
Stephen D. Newman

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Quick Facts
Patent No.
US 4,559,897
App. No.
06/718,183
Filed
1985-03-29
Granted
1985-12-24
Kind
A