Granted Patent
Utility
US 5,324,744 · App. 07/918,538
7-chromanyl esters of phenols and benzoic acids having retinoid-like activity
Inventor:
Roshantha A. Chandraratna
Patented Case
View Patent ↗
Granted: Jun 28, 1994
Filed: Jul 22, 1992
Inventor
Roshantha A. Chandraratna
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.