Patent US3004986A successfully refreshed from Google Patents.
US3004986A
Expired / Lapsed
US
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Phthalocyanine pigments
Assignee: Standard Ultramarine and Color Co
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Filing: 1957-02-08
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Granted: 1961-10-17
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Expires: 1977-02-08
Abstract
No abstract record available.
Inventors
- 👤 Ben H Kirby
- 👤 Samuel E Getty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:32
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; C09; C09B; C09B67/00; C09B67/0001; C09B67/0014; C09B67/0016; C09B67/0032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS CONSISTING ESSENTIALLY OF SLURRYING A PHTHALOCYANINE PRESSCAKE WITH WATER CONTAINING A MINOR AMOUNT OF A MEMBER OF THE GROUP CONSISTING OF CYCLOHEXANOL AND AN UNSUBSTITUTED ALKANOL HAVING AT LEAST THREE CARBON ATOMS AND ONLY ONE HYDROXYL GROUP, SAID PHTHALOCYANINE BEING SELECTED FROM THE GROUP CONSISTING OF COPPER PHTHALOCYANINE, CHLORO COPPER PHTHALOCYANINE, ALUMINUM PHTHALOCYANINE AND CHLORO ALUMINUM PHTHALOCYANINE.
Claim 2
Dependent Claim
59 words
A PROCESS CONSISTING ESSENTIALLY OF SLURRYING A PHTHALOCYANINE PRESSCAKE WITH WATER CONTAINING A MINOR AMOUNT OF A MEMBER OF THE GROUP CONSISTING OF CYCLOHEXANOL AND AN UNSUBSTITUTED ALKANOL HAVING AT LEAST THREE CARBON ATOMS AND ONLY ONE HYDROXYL GROUP, SAID PHTHALOCYANINE BEING SELECTED FROM THE GROUP CONSISTING OF COPPER PHTHALOCYANINE, CHLORO COPPER PHTHALOCYANINE, ALUMINUM PHTHALOCYANINE AND CHLORO ALUMINUM PHTHALOCYANINE.
References Cited (Backward Citations)
US2327405A
Cited
US2316535A
Cited
US2296382A
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US2367519A
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US2456274A
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US2548376A
Cited
US2469663A
Cited
US2489226A
Cited
US2859219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |