Granted Patent
Utility
US 4,242,334 · App. 05/930,194
Corticoid 17-(alkyl carbonates) and processes for their preparation
Inventors:
Ulrich Stache, Werner Fritsch, Hans G. Alpermann
Patented Case
View Patent ↗
Granted: Dec 30, 1980
Filed: Aug 2, 1978
Inventors
Ulrich Stache
Werner Fritsch
Hans G. Alpermann
Assignee (at issue)
Hoechst GmbH
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.