Granted Patent
Utility
US 5,693,418 · App. 08/504,307
Laminated film or sheet and box-shaped vessel prepared therefrom
Inventors:
Hiromi Shigemoto, Katsumi Noritomi
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Jul 20, 1995
Inventors
Hiromi Shigemoto
Katsumi Noritomi
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.