Granted Patent
Utility
US 4,879,338 · App. 06/701,279
Poly(aryl ether ketone) compositions
Inventors:
Frank W. Mercer, Michael Froix, Tai C. Cheng
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Feb 13, 1985
Inventors
Frank W. Mercer
Michael Froix
Tai C. Cheng
Assignee (at issue)
Raychem Limited
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.