Patent US2964412A successfully refreshed from Google Patents.
US2964412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of freezing poultry
Assignee: Liquefreeze Co Inc
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Filing: 1958-01-17
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Granted: 1960-12-13
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Expires: 1978-01-17
Abstract
No abstract record available.
Inventors
- 👤 Morrison Willard Langdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:31
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/06; A23B4/066; A23B4/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE METHOD OF PREPARING DRESSED POULTRY FOR SHIPMENT AND STORAGE WHICH CONSISTS IN PLACING IT IN A TREATMENT ZONE, DRAWING A VACUUM IN SUCH ZONE IN THE ORDER OF TWENTY INCHES OF MERCURY, BREAKING THE VACUUM BY DISCHARGING A BATH OF COLD WATER INTO THE TREATMENT ZONE TO COMPLETELY IMMERSE THE CARCASS, INCREASING THE PRESSURE IN THE ZONE TO APPROXIMATELY TEN POUNDS PER SQUARE INCH GAUGE, HOLDING THE CARCASS IN THE TREATMENT ZONE FOR APPROXIMATELY TWO HOURS, THEN IMMERSING THE CARCASS IN A BATH OF LIQUID NITROGEN AT SUBSTANTIALLY ATMOSPHERIC PRES-
Claim 2
Independent Claim
91 words
THE METHOD OF PREPARING DRESSED POULTRY FOR SHIPMENT AND STORAGE WHICH CONSISTS IN PLACING IT IN A TREATMENT ZONE, DRAWING A VACUUM IN SUCH ZONE IN THE ORDER OF TWENTY INCHES OF MERCURY, BREAKING THE VACUUM BY DISCHARGING A BATH OF COLD WATER INTO THE TREATMENT ZONE TO COMPLETELY IMMERSE THE CARCASS, INCREASING THE PRESSURE IN THE ZONE TO APPROXIMATELY TEN POUNDS PER SQUARE INCH GAUGE, HOLDING THE CARCASS IN THE TREATMENT ZONE FOR APPROXIMATELY TWO HOURS, THEN IMMERSING THE CARCASS IN A BATH OF LIQUID NITROGEN AT SUBSTANTIALLY ATMOSPHERIC PRES-
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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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |