Granted Patent
Utility
US 4,917,827 · App. 07/204,720
Process for the preparation of 9(11)-dehydro steroids
Inventors:
Jacobus N. M. Batist, Nicolaas Cornelis Barendse, Arthur F. Marx
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Jun 10, 1988
Inventors
Jacobus N. M. Batist
Nicolaas Cornelis Barendse
Arthur F. Marx
Assignee (at issue)
Gist-Brocades N.V.
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.