Granted Patent
Utility
US 4,690,955 · App. 06/880,295
Polyether silicone copolymers with mixed hydroxy alkoxy capping for stabilizing high solid content, molded, flexible urethane foam
Inventors:
John A. Kilgour, Michael W. Jorgenson
Patented Case
View Patent ↗
Granted: Sep 1, 1987
Filed: Jun 30, 1986
Inventors
John A. Kilgour
Michael W. Jorgenson
Assignee (at issue)
Union Carbide Corporation
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.