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US3536695A
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US
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Phenyl-azo-phenyl dyes of low solubility in water
Assignee: Sandoz AG
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Filing: 1966-12-08
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Granted: 1970-10-27
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Expires: 1986-12-08
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang Groebke
- 👤 Curt Mueller
- 👤 Roswitha Wirz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:09
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/02; C09B31/06; C09B31/062; C09B29/00; C09B29/0025; C09B29/06; C09B29/08; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2261175A
Cited
US2967858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |