Granted Patent
Utility
US 4,749,788 · App. 07/037,794
Process for the preparation of aryl-pyrido(1,4) benzodiazepines
Inventors:
Young S. Lo, William J. Welstead, Jr.
Patented Case
View Patent ↗
Granted: Jun 7, 1988
Filed: Apr 13, 1987
Inventors
Young S. Lo
William J. Welstead, 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.