Granted Patent
Utility
US 5,693,673 · App. 08/655,518
Process of preparing 2,2'-(1-methyl-1,2-ethanediylidene)bishydrazine caroximidamide!
Inventors:
Richard E. Philion, Steven Elenbaas
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: May 30, 1996
Inventors
Richard E. Philion
Steven Elenbaas
Assignee (at issue)
Sanofi
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.