Patent US2252989A successfully refreshed from Google Patents.
US3294686A
Expired / Lapsed
US
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Pigment particles coated with organo-alumtnum compounds
Assignee: —
•
Filing: —
•
Granted: 1966-12-27
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Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:54
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/44; C; C09; C09C; C09C1/00; C09C1/22; C09C1/24; C09C1/36; C09C1/3607; C09C1/3653; C09C1/3661; C09C1/3669; C09C3/00; C09C3/006; C09C3/06; C09C3/063; C09C3/08; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/64; C01P2006/00; C01P2006/12; C01P2006/42; Y; Y10; Y10S; Y10S411/00; Y10S411/914
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
90 words
FINELY DIVIDED PIGMENT PARTICLES COATED WITH A PIGMENT TREATING AGENT SELECTED FROM THE GROUP CONSISTING OF (1) ALUMINUM TRIACYLATES IN WHICH THE ACYLATE RADICALS ARE THOSE OF A MONOCARBOXYLIC ACID HAVING AT LEAST 12 CARBON ATOMS AND (2) MODIFIED TRIMERIC OXY ALUMINUM ACYLATES IN WHICH THE ACYLATE RADICALS ARE THOSE OF A MONOCARBOXYLIC ACID HAVING AT LEAST 8 CARBON ATOMS AND WHEREIN AT LEAST ONE OF SAID ACYLATE RADICALS IS REPLACED BY A RADICAL OF AN ALIPHTIC OR ARALIPHATIC PHOSPHATE, SULFONATE, AMINE, OR AMIDE HAVING AT LEAST TWO CARBON ATOMS.
Claim 2
Dependent Claim
90 words
FINELY DIVIDED PIGMENT PARTICLES COATED WITH A PIGMENT TREATING AGENT SELECTED FROM THE GROUP CONSISTING OF (1) ALUMINUM TRIACYLATES IN WHICH THE ACYLATE RADICALS ARE THOSE OF A MONOCARBOXYLIC ACID HAVING AT LEAST 12 CARBON ATOMS AND (2) MODIFIED TRIMERIC OXY ALUMINUM ACYLATES IN WHICH THE ACYLATE RADICALS ARE THOSE OF A MONOCARBOXYLIC ACID HAVING AT LEAST 8 CARBON ATOMS AND WHEREIN AT LEAST ONE OF SAID ACYLATE RADICALS IS REPLACED BY A RADICAL OF AN ALIPHTIC OR ARALIPHATIC PHOSPHATE, SULFONATE, AMINE, OR AMIDE HAVING AT LEAST TWO CARBON ATOMS.
Claim 3
Dependent Claim
14 words
COATED PIGMENT PARTICLES AS IN CLAIM 1 WHEREIN SAID PIGMENT IS A MAGNETIC PIGMENT.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |