Granted Patent
Utility
US 4,288,591 · App. 06/146,860
4-Substituted 2-iminoimidazolidine compounds
Inventor:
Albert D. Cale, Jr.
Patented Case
View Patent ↗
Granted: Sep 8, 1981
Filed: May 5, 1980
Inventor
Albert D. Cale, Jr.
Assignee (at issue)
A. H. Robins Company, Incorporated
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.