Granted Patent
Utility
US 4,782,058 · App. 07/129,918
1,3,4,6,7,11b-Hexahydro-6-phenyl-2H-pyrazino-(2,1-a)isoquinolines, for anti-histamine or anti-depression treatment
Inventor:
Ronald C. Griffith
Patented Case
View Patent ↗
Granted: Nov 1, 1988
Filed: Dec 3, 1987
Inventor
Ronald C. Griffith
Assignee (at issue)
Pennwalt Corporation
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.