Granted Patent
Utility
US 4,479,008 · App. 06/430,104
Preparation of p-nitrosodiphenylamine
Inventors:
Wadim Batorewicz, Edward L. Wheeler
Patented Case
View Patent ↗
Granted: Oct 23, 1984
Filed: Sep 30, 1982
Inventors
Wadim Batorewicz
Edward L. Wheeler
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.