Granted Patent
Utility
US 4,435,527 · App. 06/460,506
Polyester polymer polyols made with polyester polycarbonates and polyurethanes therefrom
Inventor:
Michael Cuscurida
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Jan 24, 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.