Granted Patent
Utility
US 5,486,570 · App. 08/315,166
Polyurethane sealants and adhesives containing saturated hydrocarbon polyols
Inventor:
David J. St. Clair
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Sep 29, 1994
Inventor
David J. St. Clair
Assignee (at issue)
SHELL OIL 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.