Granted Patent
Utility
US 5,116,972 · App. 07/744,857
4-(2,3 epoxypropane)azetidinones
Inventor:
Robert J. Ternansky
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Aug 14, 1991
Inventor
Robert J. Ternansky
Assignee (at issue)
Eli Lilly and Company
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.