Granted Patent
Utility
US 5,250,632 · App. 07/928,583
Heimd-containing polyetheramine curative for flexible, toughened products
Inventors:
Harold G. Waddill, Wei-Yang Su, Michael Cuscurida, Terry L. Renken
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Aug 13, 1992
Inventors
Harold G. Waddill
Wei-Yang Su
Michael Cuscurida
Terry L. Renken
Assignee (at issue)
Texaco Chemical 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.