US3219463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of dehydrofreezing foods
Assignee: Lamb Weston Inc
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Filing: 1962-02-09
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Granted: 1965-11-23
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Expires: 1982-02-09
Abstract
No abstract record available.
Inventors
- 👤 Frank G Lamb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:02
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/90; A23B2/92; A23B7/00; A23B7/02; A23B7/024; A23B7/04; A23B7/0441
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A PROCESS FOR THE FREEZING OF FRUITS AND VEGETABLE AND ORGANIC ANIMAL MATERIALS COMPRISING: PLACING SAID MATERIALS IN A VACUUM ZONE, INDUCING A VACUUM IN SAID ZONE OF A PRESSURE SUFFICIENT TO PRECOOL SAID MATERIALS TO A TEMPERATURE JUST ABOVE THE FREEZING POINT THEREOF, MAINTAINING SAID VACUUM IN SAID ZONE FOR A PERIOD OF TIME SUFFICIENT TO DEHYDRATE SAID MATERIALS TO THE EXTENT OF FROM ABOUT 3% TO ABUT 15% REMOVAL OF THE ORIGINAL MOISTURE CONTENT THEREOF AND TO PERMIT THE MOISTURE CONTENT EXTERIORLY OF THE CELLS AND THE INTERIORLY THEREOF TO REACH APPROXIMATE EQUILIBRIUM, AND PEOMTLY LOWERING THE TEMPERATURE OF SAID MATERIALS TO BELOW SAID FREEZE POINT WHEREBY SAID MATERIALS BECOME FROZEN WITHOUT CELLULAR DAMAGE THERETO.
Claim 2
Dependent Claim
117 words
A PROCESS FOR THE FREEZING OF FRUITS AND VEGETABLE AND ORGANIC ANIMAL MATERIALS COMPRISING: PLACING SAID MATERIALS IN A VACUUM ZONE, INDUCING A VACUUM IN SAID ZONE OF A PRESSURE SUFFICIENT TO PRECOOL SAID MATERIALS TO A TEMPERATURE JUST ABOVE THE FREEZING POINT THEREOF, MAINTAINING SAID VACUUM IN SAID ZONE FOR A PERIOD OF TIME SUFFICIENT TO DEHYDRATE SAID MATERIALS TO THE EXTENT OF FROM ABOUT 3% TO ABUT 15% REMOVAL OF THE ORIGINAL MOISTURE CONTENT THEREOF AND TO PERMIT THE MOISTURE CONTENT EXTERIORLY OF THE CELLS AND THE INTERIORLY THEREOF TO REACH APPROXIMATE EQUILIBRIUM, AND PEOMTLY LOWERING THE TEMPERATURE OF SAID MATERIALS TO BELOW SAID FREEZE POINT WHEREBY SAID MATERIALS BECOME FROZEN WITHOUT CELLULAR DAMAGE THERETO.
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 |