Patent US2987412A successfully refreshed from Google Patents.
US2987412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of organophilic oxides and chromate pigments
Assignee: Individual
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Filing: 1959-06-05
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Granted: 1961-06-06
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Expires: 1979-06-05
Abstract
No abstract record available.
Inventors
- 👤 Csonka Lajos
- 👤 Horkay Ferenc
- 👤 Szanto Ferenc
- 👤 Szerecz Janos
- 👤 Gonczy Jeno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:36
CPC Classifications
C; C09; C09C; C09C3/00; C09C3/08; C01; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A PROCESS FOR RENDERING INORGANIC PIGMENTS, SELECTED FROM THE GROUP CONSISTING OF OXIDES, OXYHYDROXIDES AND CHROMATES, ORGANOPHILIC IN WHICH AN AQUEOUS SUSPENSION OF THE PIGMENT IS REACTED WITH A SOLUTION OF A SALT SELECTED FROM THE GROUP CONSISTING OF ALKALI SALTS AND AN AMMONIUM SALT OF FATTY ACID SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS HAVING 16 TO 18 CARBON ATOMS AND FATTY ACIDS CONTAINING AN OH-GROUP, THE ALKALI SALT AND THE AMMONIUM SALT OF THE FATTY ACID BEING USED IN A QUANTITY OF 0.5 TO 5% BASED ON THE PIGMENT WEIGHT, THEN THE SOLUTION IS ACIDIFIED TO PH 5 WITH AN ACID SELECTED FROM THE GROUP CONSISTING OF HYDROCHLORIC ACID, SULFURIC ACID, PHOSPHORIC ACID, FORMIC ACID AND ACETIC ACID, WHEREUPON THE PIGMENT IS SEPARATED FROM THE LIQUID, DRIED, AND DISINTEGRATED.
Claim 2
Dependent Claim
132 words
A PROCESS FOR RENDERING INORGANIC PIGMENTS, SELECTED FROM THE GROUP CONSISTING OF OXIDES, OXYHYDROXIDES AND CHROMATES, ORGANOPHILIC IN WHICH AN AQUEOUS SUSPENSION OF THE PIGMENT IS REACTED WITH A SOLUTION OF A SALT SELECTED FROM THE GROUP CONSISTING OF ALKALI SALTS AND AN AMMONIUM SALT OF FATTY ACID SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS HAVING 16 TO 18 CARBON ATOMS AND FATTY ACIDS CONTAINING AN OH-GROUP, THE ALKALI SALT AND THE AMMONIUM SALT OF THE FATTY ACID BEING USED IN A QUANTITY OF 0.5 TO 5% BASED ON THE PIGMENT WEIGHT, THEN THE SOLUTION IS ACIDIFIED TO PH 5 WITH AN ACID SELECTED FROM THE GROUP CONSISTING OF HYDROCHLORIC ACID, SULFURIC ACID, PHOSPHORIC ACID, FORMIC ACID AND ACETIC ACID, WHEREUPON THE PIGMENT IS SEPARATED FROM THE LIQUID, DRIED, AND DISINTEGRATED.
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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |