Granted Patent
Utility
US 5,288,754 · App. 07/831,023
Polar C-1 esters of prostaglandins
Inventors:
David F. Woodward, Ming Fai Chan
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Feb 4, 1992
Inventors
David F. Woodward
Ming Fai Chan
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.