Granted Patent
Utility
US 4,906,500 · App. 07/164,849
Blends of a poly(aryl ether) and a poly(alkylene terephthalate) for electrical devices
Inventor:
Lawrence A. McKenna
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Mar 7, 1988
Inventor
Lawrence A. McKenna
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.