Granted Patent
Utility
US 5,556,965 · App. 08/441,330
Intermediates for the preparation of 6.alpha., 9.alpha.-difluoro steroids
Inventors:
Jean-Yves Godard, Philippe Mackiewicz, Denis Prat, Christian Richard
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: May 15, 1995
Inventors
Jean-Yves Godard
Philippe Mackiewicz
Denis Prat
Christian Richard
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.