IP Library › Granted Patent US 5,668,620
Granted Patent Utility
US 5,668,620 · App. 08/226,344

Variable focal length lenses which have an arbitrarily shaped periphery

Inventors: Stephen Kurtin, Daniel E. Fedele, Saul Epstein
Patented Case View Patent ↗
Granted: Sep 16, 1997 Filed: Apr 12, 1994
Inventors
Stephen Kurtin
Daniel E. Fedele
Saul Epstein

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Quick Facts
Patent No.
US 5,668,620
App. No.
08/226,344
Filed
1994-04-12
Granted
1997-09-16
Kind
A