Patent US2548434A successfully refreshed from Google Patents.
US2548434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective extraction and fractionation of fatty materials
Assignee: JBS USA LLC
•
Filing: 1945-08-01
•
Granted: 1951-04-10
•
Expires: 1965-08-01
Abstract
No abstract record available.
Inventors
- 👤 William M Leaders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:48
CPC Classifications
C; C11; C11B; C11B13/00; C11B13/04; B; B01; B01D; B01D11/00; B01D11/02; B01D11/0203; C11B1/00; C11B1/10; C11B1/104; C11B7/00; C11B7/0008; C11B7/005; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS FOR THE TREATMENT OF A MATERIAL OF THE CLASS CONSISTING OF SEED MEALS, CRACKLINGS AND BLEACHING EARTH TO RECOVER DECOLORIZED FATTY MATERIAL THEREFROM, WHICH COMPRISES, SUBJECTING THE MATERIAL TO THE ACTION OF A LIQUEFIED NORMALLY GASEOUS HYDROCARBON SOLVENT IN A SOLVENT-OIL RATIO OF BETWEEN ABOUT 15 TO 30 VOLUMES OF HYDROCARBON TO 1 VOLUME OF OIL AT TEMPERATURES OF ABOUT 150* TO 200* F. TO DISSOLVE THE RELATIVELY LIGHT COLOR FATTY MATERIALS WHILE LEAVING THE UNDESIRABLE DARK COLOR BODIES UNDISSOLVED WITH THE NONFATTY MATERIALS AND UNDER PRESSURES SUFFICIENTLY HIGH TO MAINTAIN THE SOLUTION OF DECOLORIZED FATTY AND SEPARATING THE SOLUTION OF DECOLORIZED FATTY MATERIAL FROM THE RESIDUAL UNDISSOLVED MATERIALS.
Claim 2
Dependent Claim
111 words
A PROCESS FOR THE TREATMENT OF A MATERIAL OF THE CLASS CONSISTING OF SEED MEALS, CRACKLINGS AND BLEACHING EARTH TO RECOVER DECOLORIZED FATTY MATERIAL THEREFROM, WHICH COMPRISES, SUBJECTING THE MATERIAL TO THE ACTION OF A LIQUEFIED NORMALLY GASEOUS HYDROCARBON SOLVENT IN A SOLVENT-OIL RATIO OF BETWEEN ABOUT 15 TO 30 VOLUMES OF HYDROCARBON TO 1 VOLUME OF OIL AT TEMPERATURES OF ABOUT 150* TO 200* F. TO DISSOLVE THE RELATIVELY LIGHT COLOR FATTY MATERIALS WHILE LEAVING THE UNDESIRABLE DARK COLOR BODIES UNDISSOLVED WITH THE NONFATTY MATERIALS AND UNDER PRESSURES SUFFICIENTLY HIGH TO MAINTAIN THE SOLUTION OF DECOLORIZED FATTY AND SEPARATING THE SOLUTION OF DECOLORIZED FATTY MATERIAL FROM THE RESIDUAL UNDISSOLVED MATERIALS.
References Cited (Backward Citations)
US1802533A
Cited
US1849886A
Cited
US2270674A
Cited
US2152667A
Cited
US2281865A
Cited
US2118454A
Cited
US2291461A
Cited
US2288441A
Cited
US2329889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |