Granted Patent
Utility
US 4,650,951 · App. 06/884,884
Method of welding laminates each having the structure of metal layer/thermally softenable insulating layer/metal layer
Inventors:
Hitoshi Koga, Takehisa Noborio, Masushi Nishimoto
Patented Case
View Patent ↗
Granted: Mar 17, 1987
Filed: Jul 11, 1986
Inventors
Hitoshi Koga
Takehisa Noborio
Masushi Nishimoto
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.