Granted Patent
Utility
US 4,720,576 · App. 06/908,998
Process for dimerization of aromatic halide compounds
Inventors:
Keisuke Wada, Keiichi Sato
Patented Case
View Patent ↗
Granted: Jan 19, 1988
Filed: Sep 18, 1986
Inventors
Keisuke Wada
Keiichi Sato
Assignee (at issue)
Mitsubishi Chemical Industries, 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.