Granted Patent
Utility
US 5,010,177 · App. 07/457,057
Process for the preparation of an azonitrile dicarboxylic acid initiator in acetone having a low salt and low water content
Inventors:
John T. Lai, Deborah S. Filla
Patented Case
View Patent ↗
Granted: Apr 23, 1991
Filed: Dec 26, 1989
Inventors
John T. Lai
Deborah S. Filla
Assignee (at issue)
B. F. Goodrich 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.