Granted Patent
Utility
US 4,325,878 · App. 06/239,799
Process for preparing 21-lower alkoxyoxalylprogesterones
Inventor:
Charles A. McCombs
Patented Case
View Patent ↗
Granted: Apr 20, 1982
Filed: Mar 2, 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.