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US3601277A Expired / Lapsed US ⏱️ 0.0 years remaining

Disposable food tray

Assignee: Atlantic Richfield Co
•
Filing: 1969-08-20
•
Granted: 1971-08-24
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Expires: 1989-08-20
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Abstract

Abstract A disposable food tray of thermoplastic material having a main body portion and a rim surrounding the body portion, the rim having first and second pairs of opposed portions and the main body portion having a bottom wall connected to the rim by a rising wall. A first divider wall has sides that converge upwardly from the bottom wall and that merge with a flat top portion. The first divider wall has a nonlinear reversely curving configuration and is connected between one of the pairs of the opposed portions and to the bottom wall. A second divider wall, also, has sides that converge upwardly from the bottom wall and that merge with a flat top portion. The second divider wall has a nonlinear configuration and transversely intersects the first divider wall intermediate its ends and is connected between the second pair of opposed portions and to the bottom wall to form a food tray having at least four compartments. The tray is made of a thermoplastic material which decomposes under moderate heat so that after use the tray may be disposed of by burning.

Inventors

  • 👤 James M Andrews
  • 👤 George H Sollenberger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 16:24
CPC Classifications
A; A47; A47G; A47G23/00; A47G23/06

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 213 words
A food tray having at least four compartments comprising: a. a main body having a bottom wall; b. a rim surrounding said body having first and second pairs of opposed portions, said rim having a flat top portion and an inclined skirt which extends outwardly from said flat web portion; c. a rising wall connecting the outer periphery of said body to said rim; d. a first divider wall connected at its base to the bottom wall and having a nonlinear, reversely curving configuration; said first wall extending between and being connected at its ends to said first pair of opposed rim portions; e. a second divider wall connected at its base to the bottom wall and having a nonlinear configuration; said second wall extending between and being connected at its ends to said second pair of opposed rim portions and intersecting and being connected to said first divider wall intermediate the ends of said first divider wall; f. said first and second divider walls having i. a flat top portion coplanar with said flat top portion of the rim, and ii. two inclined sidewalls that diverge away from said flat top portion and are joined to said bottom wall of said body; and g. said tray being composed of a thermoplastic material.
Claim 2
Dependent Claim 213 words
A food tray having at least four compartments comprising: a. a main body having a bottom wall; b. a rim surrounding said body having first and second pairs of opposed portions, said rim having a flat top portion and an inclined skirt which extends outwardly from said flat web portion; c. a rising wall connecting the outer periphery of said body to said rim; d. a first divider wall connected at its base to the bottom wall and having a nonlinear, reversely curving configuration; said first wall extending between and being connected at its ends to said first pair of opposed rim portions; e. a second divider wall connected at its base to the bottom wall and having a nonlinear configuration; said second wall extending between and being connected at its ends to said second pair of opposed rim portions and intersecting and being connected to said first divider wall intermediate the ends of said first divider wall; f. said first and second divider walls having i. a flat top portion coplanar with said flat top portion of the rim, and ii. two inclined sidewalls that diverge away from said flat top portion and are joined to said bottom wall of said body; and g. said tray being composed of a thermoplastic material.
Claim 3
Dependent Claim 29 words
The invention according to claim 1, including a plurality of spaced parallel horizontally extending steps in said inclined skirt which divide said inclined skirt into a plurality of ribs.

References Cited (Backward Citations)

US1595356A Cited
US2738915A Cited
US3051346A Cited
US3203573A Cited
US3197058A Cited
US3353886A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-08-23 1975-02-22 1975-08-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-08-23 1979-02-22 1979-08-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-08-23 1983-02-22 1983-08-24 $7700.00 Window Closed / Lapsed

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