US3922358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of raw meat
Assignee: J Sainsbury PLC
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Filing: 1973-09-18
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Granted: 1975-11-25
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Expires: 1993-09-18
Abstract
Abstract A process for treating unfrozen raw meat preferably butchered into smaller cuts, comprising wrapping each cut or several cuts in inners of material permeable to oxygen containing gas, enclosing the wrapped cuts in outers of material permeable to oxygen containing gas, and submitting the packages to heat treatment under pressure at a temperature between the freezing point of the meat and the temperature at which the meat is adversely affected by increased temperature.
Inventors
- 👤 Michael John Follett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:55
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/14; A23B4/16; B; B65; B65B; B65B25/00; B65B25/06; B65B25/065; B65B25/067
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
93 words
A PROCESS FOR TREATING UNFROZEN RAW MEAT CUTS COMPRISING SUBJECTING FRESHLY CUT MEAT, WRAPPED IN A CONTAINER PERMEABLE TO OXYGEN GAS, TO A GAS MIXTURE CONTAINING O2 GAS UNDER PRESSURE GREATER THAN ATMOSPHERIC PRESSURE FOR 2 TO 24 HOURS AT A TEMPERATURE BETWEEN THE FREEZING POINT OF THE MEAT AND THE TEMPERATURE AT WHICH THE MEAT IS ADVERSELY AFFECT BY INCREASED TEMPERATURE, THETIME-PRESSURE COMBINATION BEING SUFFICIENT FOR THE MEAT TO RETAIN ITS BRIGT RED COLOR FOR AT LEAST 2 DAYS, AND MAINTAINING THE SO-OXYGENATED UNFROZEN RAW MEAT CUTS AT A TEMPERATURE ABOE FREEZING.
Claim 2
Dependent Claim
93 words
A PROCESS FOR TREATING UNFROZEN RAW MEAT CUTS COMPRISING SUBJECTING FRESHLY CUT MEAT, WRAPPED IN A CONTAINER PERMEABLE TO OXYGEN GAS, TO A GAS MIXTURE CONTAINING O2 GAS UNDER PRESSURE GREATER THAN ATMOSPHERIC PRESSURE FOR 2 TO 24 HOURS AT A TEMPERATURE BETWEEN THE FREEZING POINT OF THE MEAT AND THE TEMPERATURE AT WHICH THE MEAT IS ADVERSELY AFFECT BY INCREASED TEMPERATURE, THETIME-PRESSURE COMBINATION BEING SUFFICIENT FOR THE MEAT TO RETAIN ITS BRIGT RED COLOR FOR AT LEAST 2 DAYS, AND MAINTAINING THE SO-OXYGENATED UNFROZEN RAW MEAT CUTS AT A TEMPERATURE ABOE FREEZING.
Claim 3
Dependent Claim
34 words
A process according to claim 1 wherein the meat is first subjected to increasing pressure to bring it to uniform pressure throughout before being maintained under said pressure for said 2 to 24 hours.
Claim 4
Dependent Claim
14 words
A process accoRding to claim 1, wherein the pressurising period is about three hours.
Claim 5
Dependent Claim
48 words
A process according to claim 1 wherein the unfrozen raw meat is butchered into smaller cuts, the cuts are wrapped in inners, then in the inners the cuts are wrapped in wrapping material permeable to oxygen, packed into containers permeable to oxygen and stored in a cool condition.
Claim 6
Dependent Claim
23 words
A process according to claim 4 wherein the wrapping material is selected from the Group consisting of polyethylene and polytheneethylene vinyl acetate polymer.
Claim 7
Dependent Claim
67 words
A process according to claim 5 wherein at least one of said individual meat cuts is packed in the wrapping material and thereafter disposed in at least one outer in the form of a carton which is permeable to a gas at least containing some oxygen gas and each loaded outer is disposed in a vessel under pressure and of material inert and impermeable to said gas.
Claim 8
Dependent Claim
20 words
A process according to claim 1 wherein the final pressure is not in excess of 150 lbs. per square inch.
Claim 9
Dependent Claim
14 words
A process in accordance with claim 1, wherein said pressurising period is 3-8 hours.
Claim 10
Dependent Claim
25 words
A process in accordance with claim 8, wherein the final pressure is about 150 lbs./sq.in. and wherein said gas mixture containing O2 gas is air.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |