Granted Patent
Utility
US 5,322,667 · App. 07/930,787
Preservative system for ophthalmic and contact lens solutions and method for cleaning disinfecting and storing contact lenses
Inventor:
Guy J. Sherman
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Aug 17, 1992
Inventor
Guy J. Sherman
Assignee (at issue)
Sherman Pharmaceuticals, 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.