Granted Patent
Utility
US 4,374,993 · App. 06/271,323
Process for the preparation of the sulfate salt of 2-amino-5-alkylthio-1,3,4-thiadiazoles
Inventor:
Kim S. Chamberlin
Patented Case
View Patent ↗
Granted: Feb 22, 1983
Filed: Jun 8, 1981
Inventor
Kim S. Chamberlin
Assignee (at issue)
EASTMAN KODAK 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.