Granted Patent
Utility
US 5,637,643 · App. 08/546,894
Polycarbonate resin composition and exterior automotive trim using same
Inventors:
Takashi Umeda, Teruhiko Nakazato
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: Oct 23, 1995
Inventors
Takashi Umeda
Teruhiko Nakazato
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.