Granted Patent
Utility
US 5,122,608 · App. 07/631,594
Method for the preparation of substituted and unsubstituted 2,3-pyridine and quinolinedicarboxylic acids
Inventor:
Henry L. Strong
Patented Case
View Patent ↗
Granted: Jun 16, 1992
Filed: Dec 19, 1990
Inventor
Henry L. Strong
Assignee (at issue)
American Cyanamid 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.