Granted Patent
Utility
US 5,047,572 · App. 07/624,932
Trisubstituted benzoic acid intermediates
Inventors:
William J. Michaely, Jeff K. Curtis
Patented Case
View Patent ↗
Granted: Sep 10, 1991
Filed: Dec 10, 1990
Inventors
William J. Michaely
Jeff K. Curtis
Assignee (at issue)
ICI Americas, 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.