Granted Patent
Utility
US 5,332,730 · App. 07/962,179
Azido derivatives of cyclopentane heptanoic or heptenoic acid
Inventor:
Ming Fai Chan
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Oct 16, 1992
Inventor
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.