Granted Patent
Utility
US 4,822,796 · App. 07/056,199
1-((Phenothiazin-10-yl)alkyl)-alpha-phenyl-4-piperidinemethanols and pharmaceutical use
Inventors:
Grover C. Helsley, Larry Davis, Gordon E. Olsen
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Jun 1, 1987
Inventors
Grover C. Helsley
Larry Davis
Gordon E. Olsen
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.