Granted Patent
Utility
US 5,225,560 · App. 07/803,855
Process for the preparation of dialkyl pyridine-2,3-dicarboxylate and derivatives thereof from dialkyl dichlorosuccinate
Inventors:
Albert A. Cevasco, George Anello Chiarello, William F. Rieker
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Dec 9, 1991
Inventors
Albert A. Cevasco
George Anello Chiarello
William F. Rieker
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.