Granted Patent
Utility
US 6,197,857 · App. 09/433,210
Flame-retardant polycarbonate resin composition and its moldings
Inventors:
Akio Nodera, Naoki Mitsuta, Noritada Takeuchi
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Nov 4, 1999
Inventors
Akio Nodera
Naoki Mitsuta
Noritada Takeuchi
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.