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US3830944A Expired / Lapsed US ⏱️ 0.0 years remaining

Sandwich package

Assignee: Individual
•
Filing: 1972-04-13
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Granted: 1974-08-20
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Expires: 1992-04-13
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Abstract

Abstract A package of a pre-cooked and frozen sandwich is described which is formed with an outer foil envelope of a high melting point plastic suitable for immersion in boiling water surrounding sandwich ingredients. The sandwich is encased in the package with the meat portion bearing against at least one side of the surrounding envelope and the bread portions of the sandwich disposed in successive layers thereon. The package automatically rights its position when placed in water to immerse the meat side into the water for thorough heating of the meat while the bread portions are heated by internal steam generated from the meat and sauce components. A preferred embodiment comprises a hamburger where the meat patty bears against the inside surface of the plastic envelope and the package contains, in successive layers, a meat sauce, a bread-sealing cheese sauce, one of the halves of a hamburger bun and the remaining half of the bun.

Inventors

  • 👤 G Dimitriadis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 19:36
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/34; B65D81/3415; B65D2581/00; B65D2581/34; B65D2581/3401; B65D2581/3402; B65D2581/3416; B65D2581/3437; B65D2581/3439; B65D2581/3455; B65D2581/3458

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-08-19 1978-02-18 1978-08-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-19 1982-02-18 1982-08-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-19 1986-02-18 1986-08-20 $7700.00 Window Closed / Lapsed

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