Granted Patent
Utility
US 5,872,275 · App. 08/913,883
Process for the producing of aromatic carbonate
Inventors:
Kyosuke Komiya, Masahiro Tojo, Shinsuke Fukuoka
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Sep 24, 1997
Inventors
Kyosuke Komiya
Masahiro Tojo
Shinsuke Fukuoka
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.