Granted Patent
Utility
US 4,613,463 · App. 06/667,023
Process and intermediates for the preparation of 17 alphahydroxyprogesterones and corticoids from an enol steroid
Inventor:
Clifford E. Sacks
Patented Case
View Patent ↗
Granted: Sep 23, 1986
Filed: Nov 1, 1984
Inventor
Clifford E. Sacks
Assignee (at issue)
The Upjohn Co.
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.