Granted Patent
Utility
US 4,329,294 · App. 06/247,951
Process for preparing 17.alpha.-hydroxy-20-ketosteroids
Inventor:
Charles A. McCombs
Patented Case
View Patent ↗
Granted: May 11, 1982
Filed: Mar 26, 1981
Inventor
Charles A. McCombs
Assignee (at issue)
EASTMAN KODAK COMPANY
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.