Granted Patent
Utility
US 4,215,135 · App. 06/045,671
Antiinflammatory 2-substituted-1H-phenanthro[9,10-d]imidazoles
Inventors:
Saul C. Cherkofsky, Thomas R. Sharpe
Patented Case
View Patent ↗
Granted: Jul 29, 1980
Filed: Jun 8, 1979
Inventors
Saul C. Cherkofsky
Thomas R. Sharpe
Assignee (at issue)
E.I. DU PONT DE NEMOURS 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.