US3219462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for vacuum dehydrofreezing of foodstuffs
Assignee: Lamb Weston Inc
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Filing: 1961-12-08
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Granted: 1965-11-23
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Expires: 1981-12-08
Abstract
No abstract record available.
Inventors
- 👤 Frank G Lamb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:39
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/04; A23B7/0441; A23B2/00; A23B2/90; A23B2/92; A23B7/02; A23B7/024; A23L; A23L19/00; A23L19/10; A23L19/12; A23L19/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A PROCESS FOR THE DEHYDRATION AND FREEZING OF A FRUIT, V EGETABLE AND MEAT FOOD PRODUCT, SAID DEHYDRATION BEING IN AN AMOUNT OF FROM ABOUT 3% T<O ABOUT 94% OF THE ORIGINAL MOISTURE CONTENT OF SAID PRODUCT, SAID PROCESS COMPRISING THE STEPS OF: SUBJECTING SAID PRODUCT TO A REDUCED PRESSURE OF NO LOWER THAN ABOUT 4.6 MM. OF MERCURY IN A VACUUM ZONE TO BRING SAID PRODUCT TO THE FREEZE POINT WITHOUT FREEZING SAID PRODUCT, SAID PRODUCT BEING SUBJECTED TO SAID REDUCED PRESSURE FOR A PERIOD OF TIME OF AT LEAST FROM ABOUT FIVE TO ABOUT TEN MINUTES TO REMOVE FROM ABOUT 3% TO ABOUT 10% OF THEMOISTURE IN SAID PRODUCT AND TO MAINTAIN SAID PROUDCT AT JUST ABOVE THE FREEZE POINT THEREOF DURING SAID PERIOD OF TIME BY IMPOSITION OF SAID AMOUNT OF VACUUM, FREEZING SAID PRODUCT, REHEATING SAID PRODUCT TO ABOVE SAID FREEZE POINT,
Claim 2
Dependent Claim
146 words
A PROCESS FOR THE DEHYDRATION AND FREEZING OF A FRUIT, V EGETABLE AND MEAT FOOD PRODUCT, SAID DEHYDRATION BEING IN AN AMOUNT OF FROM ABOUT 3% T<O ABOUT 94% OF THE ORIGINAL MOISTURE CONTENT OF SAID PRODUCT, SAID PROCESS COMPRISING THE STEPS OF: SUBJECTING SAID PRODUCT TO A REDUCED PRESSURE OF NO LOWER THAN ABOUT 4.6 MM. OF MERCURY IN A VACUUM ZONE TO BRING SAID PRODUCT TO THE FREEZE POINT WITHOUT FREEZING SAID PRODUCT, SAID PRODUCT BEING SUBJECTED TO SAID REDUCED PRESSURE FOR A PERIOD OF TIME OF AT LEAST FROM ABOUT FIVE TO ABOUT TEN MINUTES TO REMOVE FROM ABOUT 3% TO ABOUT 10% OF THEMOISTURE IN SAID PRODUCT AND TO MAINTAIN SAID PROUDCT AT JUST ABOVE THE FREEZE POINT THEREOF DURING SAID PERIOD OF TIME BY IMPOSITION OF SAID AMOUNT OF VACUUM, FREEZING SAID PRODUCT, REHEATING SAID PRODUCT TO ABOVE SAID FREEZE POINT,
References Cited (Backward Citations)
US2930139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |