Granted Patent
Utility
US 4,885,243 · App. 06/773,762
Process for producing A-21978C derivatives
Inventors:
Floyd M. Huber, Richard L. Pieper, Anthony J. Tietz
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Sep 9, 1985
Inventors
Floyd M. Huber
Richard L. Pieper
Anthony J. Tietz
Assignee (at issue)
Eli Lilly and 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.