Granted Patent
Utility
US 4,760,100 · App. 07/113,642
Terephthalic ester polyols modified with ethoxylated amines and amides and rigid foams therefrom
Inventor:
Kenneth G. McDaniel
Patented Case
View Patent ↗
Granted: Jul 26, 1988
Filed: Oct 26, 1987
Inventor
Kenneth G. McDaniel
Assignee (at issue)
Arco Chemical Company
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.