Granted Patent
Utility
US 5,919,957 · App. 09/130,531
Intermediate steroid compounds
Inventors:
Patrick Roussel, Michel Vivat
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Aug 4, 1998
Inventors
Patrick Roussel
Michel Vivat
Assignee (at issue)
Hoechst Marion Roussel
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.