Granted Patent
Utility
US 4,454,362 · App. 06/444,757
Process for producing pentachloronitrobenzene
Inventors:
Robert F. Dietrich, Walter A. Gay
Patented Case
View Patent ↗
Granted: Jun 12, 1984
Filed: Nov 26, 1982
Inventors
Robert F. Dietrich
Walter A. Gay
Assignee (at issue)
Uniroyal Ltd.
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.