Granted Patent
Utility
US 4,235,969 · App. 05/903,420
Procainamide antigen conjugates and antibodies
Inventors:
Prithipal Singh, Marcel Pirio
Patented Case
View Patent ↗
Granted: Nov 25, 1980
Filed: May 8, 1978
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.