Granted Patent
Utility
US 6,174,944 · App. 09/280,723
Polycarbonate resin composition, and instrument housing made of it
Inventors:
Jiro Chiba, Masahiro Kitayama
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Mar 30, 1999
Inventors
Jiro Chiba
Masahiro Kitayama
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.