Granted Patent
Utility
US 5,225,335 · App. 07/582,954
1,2-dehydrogenation of steroidal 21-esters with Arthrobacter simplex or Bacterium cyclooxydans
Inventors:
Leo A. Kominek, Holly J. Wolf, Paula S. Steiert
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Sep 12, 1989
Inventors
Leo A. Kominek
Holly J. Wolf
Paula S. Steiert
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.