Granted Patent
Utility
US 6,248,810 · App. 08/389,520
Waterborne dispersions of epoxidized polydiene block copolymers and amino resins
Inventors:
David J. St. Clair, James R. Erickson
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Feb 16, 1995
Inventors
David J. St. Clair
James R. Erickson
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.