Granted Patent
Utility
US 4,351,836 · App. 06/172,991
1,2,3,4,4a,5,10,10a-Octahydro-5,10-ortho-benzenobenz[g]isoquinolines and antidepressant use thereof
Inventor:
Parthasarathi Rajagopalan
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Jul 28, 1980
Inventor
Parthasarathi Rajagopalan
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.