Granted Patent
Utility
US 5,277,901 · App. 07/912,862
Ophthalmic compositions and methods for preserving and using same
Inventors:
Joseph Vigh, Priscilla Lo, Anthony J. Dziabo, Michelle Wong
Patented Case
View Patent ↗
Granted: Jan 11, 1994
Filed: Jul 13, 1992
Inventors
Joseph Vigh
Priscilla Lo
Anthony J. Dziabo
Michelle Wong
Assignee (at issue)
Allergan, 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.