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US3296812A Expired / Lapsed US ⏱️ 0.0 years remaining

Food freezer and accelerated freezing process

Assignee: LEWIS REFRIGERATION Co
•
Filing: 1965-03-01
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Granted: 1967-01-10
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Expires: 1985-03-01
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Abstract

No abstract record available.

Inventors

  • 👤 Westley R Cloudy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 08:18
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/80; A23B2/803; A23B4/00; A23B4/06; A23B4/062; F; F25; F25D; F25D13/00; F25D13/06; F25D13/067

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 115 words
THE PROCESS OF FREEZING FOOD PRODUCT SLABS WHICH COMPRISES HEAT-CONDUCTIVELY PIERCING A FOOD PRODUCT SLAB AT CLOSELY-SPACED LOCATIONS DISTRIBUTED OVER SUBSTANTIALLY ONE ENTIRE SURFACE OF THE SLAB AND THEREBY CONDUCTIVELY EXTRACTING HEAT THROUGH THE WALLS OF THE INCISIONS FROM THE INTERIOR THEREOF RAPIDLY AND SUBSTANTIALLY UNIFORMLY FROM THE ENTIRE SLAB, WHICH HEAT IS CONDUCTED TO HEATRADIATING MEANS, CONVEYING SUCH FOOD PRODUCT SLABS WHILE BEING THUS PIERCED THROUGH A REFRIGERATED SPACE FOR RADIATION OF SUCH EXTRACTED HEAT FROM THE HEAT-RADIATING MEANS INTO THE REFRIGERATED SPACE AND FREEZING OF SUCH FOOD PRODUCT, AND TERMINATING SUCH HEAT-CONDUCTIVE PIERCING DURING SUCH CONVEYING, LEAVING UNFILLED PIERCED CAVITIES IN THE FROZEN FOOD PRODUCT OPEN AT THE SURFACE OF SUCH FOOD PRODUCT.

References Cited (Backward Citations)

US1561898A Cited
US1939334A Cited
FR824919A Cited
US2221220A Cited
GB546876A Cited
US2507862A Cited
US2835480A Cited
US2859685A Cited
US3006767A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-01-09 1970-07-11 1971-01-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-01-09 1974-07-11 1975-01-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-01-09 1978-07-11 1979-01-10 $7700.00 Window Closed / Lapsed

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