Granted Patent
Utility
US 5,210,268 · App. 07/688,588
Process for continuously producing an aromatic carbonate
Inventors:
Shinsuke Fukuoka, Masahiro Tojo, Mamoru Kawamura
Patented Case
View Patent ↗
Granted: May 11, 1993
Filed: Jun 28, 1991
Inventors
Shinsuke Fukuoka
Masahiro Tojo
Mamoru Kawamura
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.