Granted Patent
Utility
US 4,456,721 · App. 06/446,123
Flame-retarded acrylonitrile-butadiene-styrene copolymer compositions comprising bis(beta-pentabromophenoxyethyl) succinate
Inventor:
Yuval Halpern
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Dec 2, 1982
Inventor
Yuval Halpern
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.