Granted Patent
Utility
US 6,245,931 · App. 08/604,323
Process for producing acrylonitrile or methacrylonitrile
Inventors:
Kunitoshi Aoki, Satoru Komada
Patented Case
View Patent ↗
Granted: Jun 12, 2001
Filed: Feb 21, 1996
Inventors
Kunitoshi Aoki
Satoru Komada
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.