Granted Patent
Utility
US 4,396,767 · App. 06/244,490
2,6-Bis(heteroaryl)pyridines
Inventors:
Paul Schmidt, William M. Hung
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Mar 16, 1981
Inventors
Paul Schmidt
William M. Hung
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.