US2617792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disproportionation of rosin acids and fatty acids
Assignee: General Mills Inc
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Filing: 1950-09-05
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Granted: 1952-11-11
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Expires: 1970-09-05
Abstract
No abstract record available.
Inventors
- 👤 Don E Floyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:46
CPC Classifications
C; C09; C09F; C09F1/00; C09F1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
PROCESS FOR THE DISPROPORTIONATION OF ROSIN ACIDS IN THE PRESENCE OF HIGHER POLYOLEFINIC FATTY ACIDS, WHICH COMPRISES HEATING A MIXTURE OF ROSIN ACIDS AND POLYOLEFINIC HIGHER FATTY ACIDS TO A TEMPERATURE IN THE RANGE OF 200-300* C. IN THE PRESENCE OF A NICKEL HYDROGENATION CATALYST AND IN THE PRESENCE OF CARBON DIOXIDE UNDER AT LEAST 25 POUNDS PER SQUARE INCH PRESSURE.
Claim 2
Dependent Claim
61 words
PROCESS FOR THE DISPROPORTIONATION OF ROSIN ACIDS IN THE PRESENCE OF HIGHER POLYOLEFINIC FATTY ACIDS, WHICH COMPRISES HEATING A MIXTURE OF ROSIN ACIDS AND POLYOLEFINIC HIGHER FATTY ACIDS TO A TEMPERATURE IN THE RANGE OF 200-300* C. IN THE PRESENCE OF A NICKEL HYDROGENATION CATALYST AND IN THE PRESENCE OF CARBON DIOXIDE UNDER AT LEAST 25 POUNDS PER SQUARE INCH PRESSURE.
References Cited (Backward Citations)
US2239555A
Cited
US2479226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |