Granted Patent
Utility
US 4,978,657 · App. 06/810,316
Novel 11.beta.-substituted-19-nor-steroids
Inventors:
Jean-Georges Teutsch, Vesperto Torelli, Roger Deraedt, Daniel Philibert, Germain Costerousse
Patented Case
View Patent ↗
Granted: Dec 18, 1990
Filed: Dec 17, 1985
Inventors
Jean-Georges Teutsch
Vesperto Torelli
Roger Deraedt
Daniel Philibert
Germain Costerousse
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.