Patent FR584762A successfully refreshed from Google Patents.
Patent US2839546A successfully refreshed from Google Patents.
US2839546A
Expired / Lapsed
US
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Treatment of bleached phosphatides with metal salts
Assignee: Akzo Nobel Paints LLC
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Filing: 1957-03-14
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Granted: 1958-06-17
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Expires: 1977-03-14
Abstract
No abstract record available.
Inventors
- 👤 Paul F Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:01
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/10; C07F9/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE PROCESS WHICH COMPRISES: ADDING AN AQUEOUS SOLUTION OF A WATER SOLUBLE SALT OF A METALLIC CATION SELECTED FROM THE GROUP CONSISTING OF MANGANOUS MANGANESE, COBALT, NICKEL AND IRON, IN THE AMOUNT OF AT LEAST 5 P. P. M. BY WEIGHT TO A PEROXIDE-TREATED PHOSPHATIDE COMPOSITION WHICH HAS BEEN RENDERED MILDLY ALKALINE, AND HEATING THE RESULTANT MIXTURE AT A TEMPERATURE WITHIN THE RANGE OF 100*F. AND 200*F. UNTIL THE PEROXIDE VALUE THEREOF HAS BEEN REDUCED.
Claim 2
Dependent Claim
75 words
THE PROCESS WHICH COMPRISES: ADDING AN AQUEOUS SOLUTION OF A WATER SOLUBLE SALT OF A METALLIC CATION SELECTED FROM THE GROUP CONSISTING OF MANGANOUS MANGANESE, COBALT, NICKEL AND IRON, IN THE AMOUNT OF AT LEAST 5 P. P. M. BY WEIGHT TO A PEROXIDE-TREATED PHOSPHATIDE COMPOSITION WHICH HAS BEEN RENDERED MILDLY ALKALINE, AND HEATING THE RESULTANT MIXTURE AT A TEMPERATURE WITHIN THE RANGE OF 100*F. AND 200*F. UNTIL THE PEROXIDE VALUE THEREOF HAS BEEN REDUCED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |