Granted Patent
Utility
US 5,399,627 · App. 08/158,200
Radial styrene-isoprene-butadiene multi-armed block copolymers and compositions and articles containing block copolymers
Inventors:
Charles F. Diehl, Jean M. Tancrede, Gary R. Marchand
Patented Case
View Patent ↗
Granted: Mar 21, 1995
Filed: Nov 24, 1993
Inventors
Charles F. Diehl
Jean M. Tancrede
Gary R. Marchand
Assignees (at issue)
THE DOW CHEMICAL COMPANY
Exxon Chemical Patents, 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.