Granted Patent
Utility
US 5,142,039 · App. 07/588,381
.beta.-lactam antibiotics
Inventors:
Larry C. Blaszczak, John E. Munroe, Douglas O. Spry
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: Sep 26, 1990
Inventors
Larry C. Blaszczak
John E. Munroe
Douglas O. Spry
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.