Envelopes – wrappers – and paperboard boxes – Paperboard box – Box material includes a coating or a nonpaperboard...
Patent
1988-11-02
1989-10-24
Marcus, Stephen
Envelopes, wrappers, and paperboard boxes
Paperboard box
Box material includes a coating or a nonpaperboard...
220 234, 220 238, 426108, 426115, 426119, 206820, B65D 120
Patent
active
048756202
ABSTRACT:
A packaging cup formed from a resilient material has an integrally body having a product reservoir and a lip. The product reservoir includes a flat bottom wall and a continuous side wall integrally joined together about a smooth curve. The side wall extends upwardly from the bottom wall to join the lip. The joint between the lip and the side wall continuously surrounds and defines an opening through the lip to the interior of the reservoir. The lip extends in a plane outwardly from this opening completely around the periphery of this opening. The bottom wall is essentially circular in shape and the opening is essentially squarish in shape. First, second, third and fourth fluted areas are located in the side wall at the corners of the squarish shaped opening. Each of the fluted areas is shaped essentially as a conical surface generated from a cone which is truncated by a plane about a parabolic intersecton of the plane with the cone. With the exception of the first, second, third and fourth fluted areas, the remainder of the side wall is formed as an essentially smooth, continuous surface.
REFERENCES:
patent: 2988208 (1961-06-01), Loew
patent: 3054679 (1962-09-01), Bradford
patent: 3321123 (1967-05-01), Collie
patent: 3443741 (1969-05-01), Stockdale
patent: 4054207 (1977-10-01), Lazure et al.
patent: 4296863 (1981-10-01), Stokkers
Photocopy of a "Cream Cup", Publication unknown; however to best of knowledge believed to be in public domain at least one year prior to Nov. 1, 1988. Source--a photograph in possession of applicant.
Boswell Herb
Marcus Stephen
Pascua Jes F.
W. A. Lane Inc.
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