Granted Patent
Utility
US 4,873,243 · App. 06/923,901
Derivatives of 3-imino-pyridazine, process for obtaining them and pharmaceutical compositions containing them
Inventors:
Camille G. Wermuth, Gilbert Schlewer, Michel Heaulme
Patented Case
View Patent ↗
Granted: Oct 10, 1989
Filed: Oct 28, 1986
Inventors
Camille G. Wermuth
Gilbert Schlewer
Michel Heaulme
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.