Granted Patent
Utility
US 4,597,902 · App. 06/746,740
N-(arylthioalkyl)-N'-(aminoalkyl)ureas
Inventors:
James R. Shanklin, Jr., Christopher P. Johnson, III
Patented Case
View Patent ↗
Granted: Jul 1, 1986
Filed: Jun 20, 1985
Inventors
James R. Shanklin, Jr.
Christopher P. Johnson, III
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.