Granted Patent
Utility
US 5,605,909 · App. 08/601,632
Substituted N-heteroaryl-1,2-diaminocyclobutene-3,4-dione compounds
Inventors:
John A. Butera, Schuyler A. Antane, Bradford H. Hirth
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: Feb 14, 1996
Inventors
John A. Butera
Schuyler A. Antane
Bradford H. Hirth
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.