Granted Patent
Utility
US 5,378,761 · App. 08/082,215
Monohydroxylated 1,3-polybutadiene/polyisocyanate product reacted with hydroxyl-functional resin
Inventor:
David J. St. Clair
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Jun 24, 1993
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.