Granted Patent
Utility
US 4,464,488 · App. 06/522,147
Polyurethanes using monocarboxylic acid salts of bis(aminoethyl)ether derivatives as catalysts
Inventors:
Robert L. Zimmerman, Bruce W. Peterson
Patented Case
View Patent ↗
Granted: Aug 7, 1984
Filed: Aug 11, 1983
Inventors
Robert L. Zimmerman
Bruce W. Peterson
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.