Granted Patent
Utility
US 4,275,160 · App. 06/055,419
Imipramine derivatives and poly(amino acid) conjugates
Inventors:
Prithipal Singh, Marcel Pirio
Patented Case
View Patent ↗
Granted: Jun 23, 1981
Filed: Jul 6, 1979
Inventors
Prithipal Singh
Marcel Pirio
Assignee (at issue)
Syva 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.