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US3671270A Expired / Lapsed US ⏱️ 0.0 years remaining

Popcorn package

Assignee: Dun Hot Inc
•
Filing: 1970-08-19
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Granted: 1972-06-20
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Expires: 1990-08-19
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Abstract

Abstract THE POPCORN PACKAGE INCLUDES AN OPEN-TOPPED RELATIVELY SHALLOW PAN WHICH HAS AN ANNULAR FLANGE. A TRANSPARENT PLASTIC COVER EXTENDS ACROSS AND INTO THE PAN. THE COVER HAS SUBSTANTIALLY THE SAME RELATIVELY SHALLOW OUTLINE AS THE PAN. THIS PERMITS NESTING OF A PLURALITY OF POPCORN PACKAGES FOR STORAGE PURPOSES. A CHARGE OF POPCORN KERNELS AND COOKING OIL IS CONFINED BETWEEN THE PAN AND THE COVER. THE COVER IS OUTWARDLY FLEXIBLE UPON HEATING OF THE CHARGE TO POP THE CORN. THE FLANGE INCLUDES A BENT OVER EDGE PORTION WHICH CLAMPINGLY ENGAGES THE MARGINAL PERIPHERAL EDGE OF THE FLEXIBLE COVER. A PLURALITY OF SPACED APART STAKED PORTIONS IN THE FLANGE, WHICH PUNCTURE BOTH THE FLANGE AND THE MARGINAL EDGE OF THE COVER, POSITIVELY HOLD THE COVER IN PLACE AND PROVIDE A RESTRICTED FLUID PASSAGE FOR PRESSURE RELEASE DURING HEATING OF THE CHARGE TO POP THE POPCORN KERNELS. D R A W I N G

Inventors

  • 👤 David H Jehn

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 19:01
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/34; B65D81/3407; B65D2581/00; B65D2581/34; B65D2581/3401; B65D2581/3402; B65D2581/3421

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) 1975-06-20 1975-12-20 1976-06-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-20 1979-12-20 1980-06-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-20 1983-12-20 1984-06-20 $7700.00 Window Closed / Lapsed

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