Granted Patent
Utility
US 4,346,868 · App. 06/151,374
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Inventor:
Henry Lindner
Patented Case
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Granted: Aug 31, 1982
Filed: May 19, 1980
Inventor
Henry Lindner
Assignee (at issue)
Beatrice Foods Co., Div. of Elgin Molded Plastics
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.