Granted Patent
Utility
US 5,159,073 · App. 07/735,747
Intermediates to 1-carbacephalosporins and process for preparation thereof
Inventors:
James A. Aikins, Eddie V. P. Tao
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Jul 25, 1991
Inventors
James A. Aikins
Eddie V. P. Tao
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.