Granted Patent
Utility
US 6,790,887 · App. 09/717,060
Aromatic polycarbonate resin composition
Inventor:
Hajime Nishihara
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Nov 22, 2000
Inventor
Hajime Nishihara
Assignee (at issue)
ASAHI KASEI KABUSHIKI KAISHA
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.