Granted Patent
Utility
US 5,250,349 · App. 07/908,991
Retortable packaging laminate structure with adhesive layer
Inventors:
Mikio Nakagawa, Masaharu Mito
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Jul 6, 1992
Inventors
Mikio Nakagawa
Masaharu Mito
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.