Granted Patent
Utility
US 4,370,388 · App. 06/129,192
Laminated multilayer structure
Inventors:
Masaharu Mito, Masahiro Koya
Patented Case
View Patent ↗
Granted: Jan 25, 1983
Filed: Mar 11, 1980
Inventors
Masaharu Mito
Masahiro Koya
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.