Granted Patent
Utility
US 5,414,011 · App. 07/329,451
Preservative system for ophthalmic formulations
Inventors:
Cherng-Chyi Fu, Deborah M. Lidgate
Patented Case
View Patent ↗
Granted: May 9, 1995
Filed: Mar 28, 1989
Inventors
Cherng-Chyi Fu
Deborah M. Lidgate
Assignee (at issue)
Syntex (U.S.A.) LLC
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.