US3104977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for freezing food
Assignee: Liquefreeze Co Inc
•
Filing: 1960-01-14
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Granted: 1963-09-24
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Expires: 1980-01-14
Abstract
No abstract record available.
Inventors
- 👤 Willard L Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:49
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/80; A23B2/803; A23B2/8033; F; F25; F25D; F25D3/00; F25D3/10; F25D3/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
THE METHOD OF FREEZING FOOD WHICH CONSISTS IN PACKING IT IN A PLURALITY OF SEPARATE, GENERALLY RECTAMGULAR FLEXIBLE WALLED DISPOSABLE CONTAINERS, COOLING THE SEPARATE PACKAGES DOWN TO A POINT JUST ABOVE FREEZING WHERE THEIR COSTENTS BECOMES MUSHY, FILLING A RECTANGULAR GENERALLY RIGID WALLED CARTON WITH SAID CONTAINERS IN CONTACT WITH ONE ANOTHER, CLOSING AND SEALING THE CARTON AND EXPOSING THE FILLER CARTON TO A BATH OF LIQUID NITROGEN AT ATMOSPHERIC PRESSURE UNTIL THE TEMPERATURE OF THE FOOD IS BELOW ZERO DEGREES F.
Claim 2
Independent Claim
82 words
THE METHOD OF FREEZING FOOD WHICH CONSISTS IN PACKING IT IN A PLURALITY OF SEPARATE, GENERALLY RECTAMGULAR FLEXIBLE WALLED DISPOSABLE CONTAINERS, COOLING THE SEPARATE PACKAGES DOWN TO A POINT JUST ABOVE FREEZING WHERE THEIR COSTENTS BECOMES MUSHY, FILLING A RECTANGULAR GENERALLY RIGID WALLED CARTON WITH SAID CONTAINERS IN CONTACT WITH ONE ANOTHER, CLOSING AND SEALING THE CARTON AND EXPOSING THE FILLER CARTON TO A BATH OF LIQUID NITROGEN AT ATMOSPHERIC PRESSURE UNTIL THE TEMPERATURE OF THE FOOD IS BELOW ZERO DEGREES F.
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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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |