Granted Patent
Utility
US 5,252,539 · App. 07/856,262
Benzenesulfonyl carboxamide compounds intermediate compounds and method of preparation thereof and use of said compounds and intermediate compounds as herbicidal agents
Inventors:
Sergio I. Alvarado, Alvin D. Crews, Jr., Peter J. Wepplo, Robert F. Doehner, Jr., Thomas E. Brady, David M. Gange, Desiree L. Little
Patented Case
View Patent ↗
Granted: Oct 12, 1993
Filed: Mar 23, 1992
Inventors
Sergio I. Alvarado
Alvin D. Crews, Jr.
Peter J. Wepplo
Robert F. Doehner, Jr.
Thomas E. Brady
David M. Gange
Desiree L. Little
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.