Granted Patent
Utility
US 4,389,531 · App. 06/350,936
Preparation of N-substituted anilines
Inventor:
Gary T. Clark
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: Feb 22, 1982
Inventor
Gary T. Clark
Assignee (at issue)
EASTMAN KODAK COMPANY
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.