Granted Patent
Utility
US 5,449,710 · App. 08/239,134
Flame retardative polycarbonate resin composition
Inventors:
Takashi Umeda, Akio Nodera, Kazuto Hashimoto
Patented Case
View Patent ↗
Granted: Sep 12, 1995
Filed: May 6, 1994
Inventors
Takashi Umeda
Akio Nodera
Kazuto Hashimoto
Assignee (at issue)
Idemitsu Petrochemical Co., Ltd.
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.