Granted Patent
Utility
US 5,434,220 · App. 08/288,455
Polyphenylene ether resin compositions comprising copolymers of unsaturated dicarboxylic acid esters and block copolymers
Inventors:
Masaji Yoshimura, Kazuharu Kanezaki, Takashi Satoh, Tomoyuki Nakata, Minoru Takiguchi
Patented Case
View Patent ↗
Granted: Jul 18, 1995
Filed: Aug 10, 1994
Inventors
Masaji Yoshimura
Kazuharu Kanezaki
Takashi Satoh
Tomoyuki Nakata
Minoru Takiguchi
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.