IP Library Granted Patent US 4,611,039
Granted Patent Utility
US 4,611,039 · App. 06/319,193

Wettable, gas permeable contact lens

Inventors: James Powell, G. Graham Allan
Patented Case View Patent ↗
Granted: Sep 9, 1986 Filed: Nov 9, 1981
Inventors
James Powell
G. Graham Allan
Assignee (at issue)
Precision-Cosmet Co., Inc.

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

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Quick Facts
Patent No.
US 4,611,039
App. No.
06/319,193
Filed
1981-11-09
Granted
1986-09-09
Kind
A