IP Library › Granted Patent US 4,750,489
Granted Patent Utility
US 4,750,489 · App. 06/770,528

Radial keratotomy knife and system using same

Inventors: John W. Berkman, Michael Howard Curtis, David A. Dewey
Patented Case View Patent ↗
Granted: Jun 14, 1988 Filed: Aug 29, 1985
Inventors
John W. Berkman
Michael Howard Curtis
David A. Dewey
Assignee (at issue)
Coopervision, Inc

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Quick Facts
Patent No.
US 4,750,489
App. No.
06/770,528
Filed
1985-08-29
Granted
1988-06-14
Kind
A