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US3025315A
Expired / Lapsed
US
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Method of processing animal fats
Assignee: Wilson and Co Inc
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Filing: 1959-05-27
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Granted: 1962-03-13
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Expires: 1979-05-27
Abstract
No abstract record available.
Inventors
- 👤 Dero J Krumm
- 👤 Rodney A Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:30
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/12; C11B1/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
IN THE MANUFACTURE OF EDIBLE FAT FROM PACKING HOUSE ANIMAL FATS WHEREIN THE ANIMAL FAT IS RENDERED BY DIRECT CONTACT WITH STEAM UNDER PESSURE AND THE PRODUCTS OF RENDERING ARE SEPARATED BY STANDING IN A NON-AGITATED CONDITION, THE STEPS COMPRISNG WITHDRAWING THE SEPARATED LIQUID FAT PHASE WHICH CONTAINS SOME UNSEPARATED WATER TO A ZONE WHERE THE PRESSURE MAINTAINED IS IN THE RANGE BETWEEN APPROXIMATELY ATMOSPHERIC PRESSURE AND ABOUT 10 INCHES OF WATER SUBATMOSPHERIC PRESSURE, MAINTAINING AN ATMOSPHERE OF STEAM IN CONTACT WITH THE HOT FAT TO PREVENT CONTACT WITH AIR, REMOVING THE HOT LIQUID FAT FROM SAID ZONE WHEN AT A TEMPERATURE ABOVE ABOUT 230*F. AND FLOWING THE HOT LIQUID FAT INTO A TREATMENT ZONE WHERE A SUBATMOSPHERIC PRESSURE IN EXCESS OF ABOUT 24 INCHES OF MERCURY IS MAINTAINED, WHEREBY, SIMULTANEOUSLY, WATER
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) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |