Patent US2742488A successfully refreshed from Google Patents.
US2742488A
Expired / Lapsed
US
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Process for rendering animal fats
Assignee: Maple Leaf Foods Inc
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Filing: 1952-09-25
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Granted: 1956-04-17
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Expires: 1972-09-25
Abstract
No abstract record available.
Inventors
- 👤 Enmanuel J Dufault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:10
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS OF RECOVERING THE FAT CONTENT FROM THE FATTY TISSUE OF ANIMALS, COMPRISING: TREATING SAID FATTY TISSUE TO DENATURE THE FAT-SPLITTING ENZYMES, MECHANICALLY DISINTEGRATING SAID FATTY TISSUE SO AS TO RUPTURE THE WALLS OF SUBSTANTIALLY ALL OF THE FAT CELLS THEREOF, SUBJECTING THE RESULTING MASS TO A VACCUM TO DEAERATE THE MASS WHILE AT A TEMPERATURE SUFFICIENT TO LIQUEFY THE FAT CONTENT THEREOF WHILE RETAINING A LARGE PERCENTAGE OF THE MOISTURE PRESENT IN SAID MASS, REPLACING SAID VACCUM WITH AN ATMOSPHERE OF INERT GAS, SUBJECTING SAID DEAERATED MASS TO A TEMPERATURE SUFFICIENT TO COAGULATE THE TISSUE CONTENT THEREOF AND SEPARATING THE LIQUID FAT FROM THE TISSUE CONTENT OF THE MASS.
Claim 2
Dependent Claim
111 words
A PROCESS OF RECOVERING THE FAT CONTENT FROM THE FATTY TISSUE OF ANIMALS, COMPRISING: TREATING SAID FATTY TISSUE TO DENATURE THE FAT-SPLITTING ENZYMES, MECHANICALLY DISINTEGRATING SAID FATTY TISSUE SO AS TO RUPTURE THE WALLS OF SUBSTANTIALLY ALL OF THE FAT CELLS THEREOF, SUBJECTING THE RESULTING MASS TO A VACCUM TO DEAERATE THE MASS WHILE AT A TEMPERATURE SUFFICIENT TO LIQUEFY THE FAT CONTENT THEREOF WHILE RETAINING A LARGE PERCENTAGE OF THE MOISTURE PRESENT IN SAID MASS, REPLACING SAID VACCUM WITH AN ATMOSPHERE OF INERT GAS, SUBJECTING SAID DEAERATED MASS TO A TEMPERATURE SUFFICIENT TO COAGULATE THE TISSUE CONTENT THEREOF AND SEPARATING THE LIQUID FAT FROM THE TISSUE CONTENT OF THE MASS.
References Cited (Backward Citations)
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US2388284A
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US2467529A
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US2504507A
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US2616910A
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US2697112A
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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) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |