Granted Patent
Utility
US 6,011,177 · App. 08/978,965
Process for 4-sulfonamidolphenyl hydrazines
Inventors:
Thomas G. Archibald, James C. Barnard
Patented Case
View Patent ↗
Granted: Jan 4, 2000
Filed: Nov 26, 1997
Inventors
Thomas G. Archibald
James C. Barnard
Assignee (at issue)
AEROJET-GENERAL CORPORATION
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.