Granted Patent
Utility
US 4,963,620 · App. 07/308,090
Polyphenylene ether-polyamide blends
Inventors:
Thomas S. Grant, Ronald L. Jalbert
Patented Case
View Patent ↗
Granted: Oct 16, 1990
Filed: Feb 9, 1989
Inventors
Thomas S. Grant
Ronald L. Jalbert
Assignee (at issue)
Borg-Warner Chemicals, 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.