Granted Patent
Utility
US 4,861,915 · App. 07/174,849
Poly (aryl ether ketone) block copolymers
Inventors:
Robert A. Clendinning, James E. Harris, George T. Kwiatkowski, Lee P. McMaster, Markus Matzner, Paul A. Winslow
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Mar 29, 1988
Inventors
Robert A. Clendinning
James E. Harris
George T. Kwiatkowski
Lee P. McMaster
Markus Matzner
Paul A. Winslow
Assignee (at issue)
Amoco 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.