Granted Patent
Utility
US 4,350,778 · App. 06/268,460
Method for making RIM polyurethane elastomers using as the catalyst system a hydroxyalkylamine, dibutyltin dilaurate and an alkyltin mercaptide
Inventors:
Richard J. G. Dominguez, Doris M. Rice, Robert L. Zimmerman
Patented Case
View Patent ↗
Granted: Sep 21, 1982
Filed: May 29, 1981
Inventors
Richard J. G. Dominguez
Doris M. Rice
Robert L. Zimmerman
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.