Granted Patent
Utility
US 4,317,827 · App. 06/152,991
4-[4(or 3)-Acylaminophenyl]pyridines and their use as cardiotonics
Inventors:
George Y. Lesher, Donald F. Page
Patented Case
View Patent ↗
Granted: Mar 2, 1982
Filed: May 27, 1980
Inventors
George Y. Lesher
Donald F. Page
Assignee (at issue)
Sterling Drug, Inc.
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.