Granted Patent
Utility
US 4,704,409 · App. 07/004,736
Reaction products of polyols with bicyclic amide acetals and their application in polyurethane polymers
Inventor:
Anil B. Goel
Patented Case
View Patent ↗
Granted: Nov 3, 1987
Filed: Jan 20, 1987
Inventor
Anil B. Goel
Assignee (at issue)
Ashland Oil, 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.