US3487066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-insoluble monoazo pyridine dyestuffs
Assignee: Cassella Farbwerke Mainkur AG
•
Filing: 1966-08-05
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Granted: 1969-12-30
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Expires: 1986-08-05
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Ritter
- 👤 Ernst Heinrich
- 👤 Hanswilli Von Brachel
- 👤 Horst Kindler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:19
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/34; C09B29/36; C09B29/3604; C09B29/3617; C09B29/3621; C09B29/3626; C09B29/363; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3312681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |