Granted Patent
Utility
US 4,874,754 · App. 07/157,417
Novel 19-nor-steroids
Inventors:
Francois Nique, Lucien Nedelec, Marie-Madeleine Bouton, Daniel Philibert
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Feb 17, 1988
Inventors
Francois Nique
Lucien Nedelec
Marie-Madeleine Bouton
Daniel Philibert
Assignee (at issue)
Roussel Uclaf
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.