Granted Patent
Utility
US 4,861,837 · App. 07/183,010
Shaped article formed from a blend of a poly(aryl ether) and a polycarbonate and/or a polyarylate
Inventors:
Barry L. Dickinson, Lloyd M. Robeson
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Apr 18, 1988
Inventors
Barry L. Dickinson
Lloyd M. Robeson
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.