US3296812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food freezer and accelerated freezing process
Assignee: LEWIS REFRIGERATION Co
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Filing: 1965-03-01
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Granted: 1967-01-10
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Expires: 1985-03-01
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.
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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) | 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 |