US3340250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extracting values from turmeric
Assignee: Griffith Laboratories Ltd
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Filing: 1963-09-18
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Granted: 1967-09-05
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Expires: 1983-09-18
Abstract
No abstract record available.
Inventors
- 👤 Sair Louis
- 👤 Klee Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:12
CPC Classifications
A; A23; A23L; A23L27/00; A23L27/10; A23L27/11; A23L5/00; A23L5/20; A23L5/23; B; B01; B01D; B01D11/00; B01D11/02; B01D11/028; B01D11/0284; B01D11/0288; B01D11/0292
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE METHOD OF FORMING A DEBITTERED TUMERIC COLOR FROM TURMERIC MATERIAL WHICH CONTAINS OLEORESIN AND ESSENTIAL OIL THEREOF WHICH COMPRISES SUBJECTING SAID TURMERIC MATERIAL TO THE EXTRACTING ACTION OF AN ALIPHATIC HYDROCARBON SOLVENT HAVING SOLVENT CHARACTERISTICS OF SOLVENT SELECTED FROM THE GROUP CONSISTING OF PETROLEUM ETHER, BENZENE, HEPTANE, HEXANE AND MIXTURES THEREOF IN RESPECT TO PREFERENTIAL SELECTIVITY FOR THE ESSENTIAL OIL CONTENT AND THE SIMULTANEOUS POOR SELECTIVITY FOR THE COLORED OLEORESIN CONTENT, AND SEPARATING THE OIL-CONTAINING SOLVENT FROM THE COLORED RESIDUE.
Claim 2
Independent Claim
81 words
THE METHOD OF FORMING A DEBITTERED TUMERIC COLOR FROM TURMERIC MATERIAL WHICH CONTAINS OLEORESIN AND ESSENTIAL OIL THEREOF WHICH COMPRISES SUBJECTING SAID TURMERIC MATERIAL TO THE EXTRACTING ACTION OF AN ALIPHATIC HYDROCARBON SOLVENT HAVING SOLVENT CHARACTERISTICS OF SOLVENT SELECTED FROM THE GROUP CONSISTING OF PETROLEUM ETHER, BENZENE, HEPTANE, HEXANE AND MIXTURES THEREOF IN RESPECT TO PREFERENTIAL SELECTIVITY FOR THE ESSENTIAL OIL CONTENT AND THE SIMULTANEOUS POOR SELECTIVITY FOR THE COLORED OLEORESIN CONTENT, AND SEPARATING THE OIL-CONTAINING SOLVENT FROM THE COLORED RESIDUE.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |