Granted Patent
Utility
US 4,966,790 · App. 07/270,814
Coating compositions
Inventors:
Hiroshi Iizuka, Tadao Iwata, Shuichi Ishiwata
Patented Case
View Patent ↗
Granted: Oct 30, 1990
Filed: Nov 10, 1988
Inventors
Hiroshi Iizuka
Tadao Iwata
Shuichi Ishiwata
Assignee (at issue)
Mitsui Petrochemical 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.