Granted Patent
Utility
US 6,350,848 · App. 09/940,884
Process and apparatus for producing polycarbonate
Inventors:
Takatoshi Kinoshita, Kazunori Harada, Seiji Motohiro
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: Aug 29, 2001
Inventors
Takatoshi Kinoshita
Kazunori Harada
Seiji Motohiro
Assignee (at issue)
HITACHI, 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.