Granted Patent
Utility
US 4,328,162 · App. 06/184,552
Process for preparing 9,11-unsaturated steroidal compound from the corresponding saturated steroidal compound
Inventors:
John A. Hyatt, Charles A. McCombs
Patented Case
View Patent ↗
Granted: May 4, 1982
Filed: Sep 5, 1980
Inventors
John A. Hyatt
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.