IP Library › Granted Patent US 4,890,913
Granted Patent Utility
US 4,890,913 · App. 07/113,244

Zoned multi-focal contact lens

Inventor: John Trevor de Carle
Patented Case View Patent ↗
Granted: Jan 2, 1990 Filed: Oct 26, 1987
Inventor
John Trevor de Carle

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Quick Facts
Patent No.
US 4,890,913
App. No.
07/113,244
Filed
1987-10-26
Granted
1990-01-02
Kind
A