Granted Patent
Utility
US 6,277,945 · App. 09/368,362
Method for producing an aromatic polycarbonate
Inventors:
Hiroshi Hachiya, Kyosuke Komiya
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: Aug 5, 1999
Inventors
Hiroshi Hachiya
Kyosuke Komiya
Assignee (at issue)
ASAHI KASEI KOGYO 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.