Granted Patent
Utility
US 4,767,005 · App. 07/134,489
Packaging container
Inventors:
Toshihide Onuma, Shigeo Katsura
Patented Case
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Granted: Aug 30, 1988
Filed: Dec 18, 1987
Inventors
Toshihide Onuma
Shigeo Katsura
Assignee (at issue)
Nippon Mining Company Limited
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.