Patent US3417075A successfully refreshed from Google Patents.
US3417075A
Expired / Lapsed
US
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Basic monoazo dyestuffs
Assignee: Kuhlmann SA
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Filing: 1964-10-19
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Granted: 1968-12-17
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Mingasson Georges
- 👤 Sureau Robert
- 👤 Dupre Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:34
CPC Classifications
C; C07; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/06; C07D235/08; C07D235/18; C09; C09B; C09B29/00; C09B29/0025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |