Granted Patent
Utility
US 4,810,795 · App. 07/018,661
Certain 2,5 and 2,5,6-di- and tri-substituted nicotinic acid intermediates
Inventor:
Albert D. Cale, Jr.
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Feb 25, 1987
Inventor
Albert D. Cale, Jr.
Assignee (at issue)
A. H. Robins Company, Incorporated
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.