Granted Patent
Utility
US 4,853,384 · App. 07/167,929
1-carbonyl derivatives of 4-aryl-4-aryloxypiperidines
Inventors:
Grover C. Helsley, Larry Davis, Gordon E. Olsen
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Mar 14, 1988
Inventors
Grover C. Helsley
Larry Davis
Gordon E. Olsen
Assignee (at issue)
Hoechst Roussel Pharmaceuticals
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.