US3474084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive monoazo dyestuffs containing two chlorotriazine groups
Assignee: Imperial Chemical Industries Ltd
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Filing: 1965-04-01
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Granted: 1969-10-21
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Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 Geoffrey Griffiths
- 👤 Brian Neville Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:16
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/66; C; C09; C09B; C09B62/00; C09B62/002; C09B62/016; C09B62/02; C09B62/04; C09B62/043; C09B62/08; C09B62/085; C09B62/44; C09B62/4401; C09B62/4403
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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |