Granted Patent
Utility
US 5,545,835 · App. 08/334,297
5,6-disubstituted-3-pyridylmethyl ammonium halide compounds useful for the preparation of 5-(substituted methyl)-2,3-pyridinedicarboxylic acids
Inventor:
Henry L. Strong
Patented Case
View Patent ↗
Granted: Aug 13, 1996
Filed: Nov 4, 1994
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.