Granted Patent
Utility
US 5,354,763 · App. 08/153,706
Substituted N-heteroaryl and N-aryl-1,2-diaminocyclobutene-3,4-diones
Inventors:
John A. Butera, Schuyler A. Antane
Patented Case
View Patent ↗
Granted: Oct 11, 1994
Filed: Nov 17, 1993
Inventors
John A. Butera
Schuyler A. Antane
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.