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US3415808A
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US
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Azo-dyestuffs containing 2-aryl-arylenethiazole groups
Assignee: BASF Schweiz AG
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Filing: 1965-09-21
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Granted: 1968-12-10
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Expires: 1985-09-21
Abstract
No abstract record available.
Inventors
- 👤 Weber Kurt
- 👤 Ingold Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:25
CPC Classifications
C; C09; C09B; C09B43/00; C09B39/00; C09B43/12; C09B43/136; C09B43/145; C09B69/00; D; D06; D06P; D06P1/00; D06P1/0048; D06P1/22; D06P1/227; D06P3/00; D06P3/58; D06P3/60; D06P3/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2076921A
Cited
US2875193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |