Granted Patent
Utility
US 5,290,771 · App. 07/875,460
19-nor-steroids
Inventors:
Andre Claussner, Lucien Nedelec, Daniel Philibert, Patrick Van De Velde
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Apr 29, 1992
Inventors
Andre Claussner
Lucien Nedelec
Daniel Philibert
Patrick Van De Velde
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.