Patent US3052701A successfully refreshed from Google Patents.
US3052701A
Expired / Lapsed
US
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Refining fatty acids
Assignee: Akzo Nobel Paints LLC
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Filing: 1959-11-12
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Granted: 1962-09-04
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Expires: 1979-11-12
Abstract
No abstract record available.
Inventors
- 👤 Burt L Hampton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:23
CPC Classifications
C; C11; C11C; C11C1/00; C11C1/08; C11C1/10; C11C1/103; C11B; C11B13/00; C11B13/005; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
AN IMPROVED PROCESS FOR UPGRADING A TALL OIL FATTY ACID DISTILLATE FRACTION WITHOUT SUBSTANTIALLY CHANGING THE COMPOSITION OF SAID FRACTION WHICH CONSISTS ESSENTIALLY OF SUSPENDING IN SAID FRACTION 1/2-4% OF FINELY-DIVIDED, ACIDACTIVATED MONTMORILLONITE CLAY SOLIDS, AGITATING THE RESULTING SUSPENSION FOR 1/2-3 HOURS AT 50*-110*C., FILTERABLY SEPARATING SAID SUSPENSION INTO CLAY SOLIDS AND FILTRATE, DISOF IMPROVED HEAT-STABLE COLOR.
Claim 2
Dependent Claim
57 words
AN IMPROVED PROCESS FOR UPGRADING A TALL OIL FATTY ACID DISTILLATE FRACTION WITHOUT SUBSTANTIALLY CHANGING THE COMPOSITION OF SAID FRACTION WHICH CONSISTS ESSENTIALLY OF SUSPENDING IN SAID FRACTION 1/2-4% OF FINELY-DIVIDED, ACIDACTIVATED MONTMORILLONITE CLAY SOLIDS, AGITATING THE RESULTING SUSPENSION FOR 1/2-3 HOURS AT 50*-110*C., FILTERABLY SEPARATING SAID SUSPENSION INTO CLAY SOLIDS AND FILTRATE, DISOF IMPROVED HEAT-STABLE COLOR.
References Cited (Backward Citations)
US2475420A
Cited
US2720515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |