Granted Patent
Utility
US 4,246,197 · App. 06/070,225
6-Keto-PGE.sub.1 amides
Inventor:
Udo F. Axen
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Aug 27, 1979
Inventor
Udo F. Axen
Assignee (at issue)
The Upjohn Co.
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.