US2616909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous filtration process for solvent extraction of castor oil from castor seeds
Assignee: Baker Castor Oil Co
•
Filing: 1950-04-18
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Granted: 1952-11-04
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Expires: 1970-04-18
Abstract
No abstract record available.
Inventors
- 👤 James S F Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IN A CONTINUOUS PROCESS FOR THE MANUFACTURE OF CASTOR OIL BY THE SOLVENT EXTRACTION OF CASTOR SEED CONTAINING SAID OIL, THE STEP OF SEPARATING THE MISCELLA FROM THE SOLIDS OF A SLURRY BY THICKENING AND COMPACTING THE SOLIDS OF THE SLURRY ON ONE SURFACE OF A PERFORATE FILTERING ELEMENT WHILE
Claim 2
Dependent Claim
50 words
IN A CONTINUOUS PROCESS FOR THE MANUFACTURE OF CASTOR OIL BY THE SOLVENT EXTRACTION OF CASTOR SEED CONTAINING SAID OIL, THE STEP OF SEPARATING THE MISCELLA FROM THE SOLIDS OF A SLURRY BY THICKENING AND COMPACTING THE SOLIDS OF THE SLURRY ON ONE SURFACE OF A PERFORATE FILTERING ELEMENT WHILE
References Cited (Backward Citations)
US2467403A
Cited
US2502484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |