Granted Patent
Utility
US 5,451,690 · App. 08/372,647
Lambda-1,4-pregnadiene-3,20-diones
Inventors:
Luc Devocelle, Philippe Mackiewicz
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Jan 13, 1995
Inventors
Luc Devocelle
Philippe Mackiewicz
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.