Granted Patent
Utility
US 5,780,505 · App. 08/889,166
Substituted N-arylmethylamino derivatives of cyclobutene-3, 4-diones
Inventors:
Madelene M. Antane, David R. Herbst, Geraldine Ruth McFarlane, Eric Gould Gundersen, Bradford H. Hirth, Dominick Anthony Quagliato, Russell Graceffa, John A. Butera
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Jul 7, 1997
Inventors
Madelene M. Antane
David R. Herbst
Geraldine Ruth McFarlane
Eric Gould Gundersen
Bradford H. Hirth
Dominick Anthony Quagliato
Russell Graceffa
John A. Butera
Assignee (at issue)
Amerimas Home Products, Inc.
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.