Granted Patent
Utility
US 4,518,778 · App. 06/513,599
Polymer polyols from alkylene oxide adducts of alkanolamines
Inventor:
Michael Cuscurida
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Jul 14, 1983
Inventor
Michael Cuscurida
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.