Granted Patent
Utility
US 4,491,649 · App. 06/556,888
High impact polyphenylene ether compositions having improved processability
Inventors:
John C. Falk, Ronald L. Jalbert, Klementina Khait
Patented Case
View Patent ↗
Granted: Jan 1, 1985
Filed: Dec 1, 1983
Inventors
John C. Falk
Ronald L. Jalbert
Klementina Khait
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.