Granted Patent
Utility
US 5,023,341 · App. 07/409,477
Compounds having a disubstituted acetylene moiety and retinoic acid-like biological activity
Inventor:
Roshantha A. Chandraratna
Patented Case
View Patent ↗
Granted: Jun 11, 1991
Filed: Sep 19, 1989
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.