Granted Patent
Utility
US 4,465,858 · App. 06/515,405
Procedure for the partial alkoxylation of polyoxyalkyleneamines
Inventors:
Michael Cuscurida, Howard P. Klein
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: Jul 20, 1983
Inventors
Michael Cuscurida
Howard P. Klein
Assignee (at issue)
Texaco 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.