Granted Patent
Utility
US 5,336,686 · App. 08/020,053
17 Methylene lactones of steroids
Inventors:
Lucien Nedelec, Francois Nique, Daniel Philibert
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Feb 19, 1993
Inventors
Lucien Nedelec
Francois Nique
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.