US3758470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazinyl anthraquinones
Assignee: Novartis AG
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Filing: 1970-10-16
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Granted: 1973-09-11
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Expires: 1990-10-16
Abstract
Abstract NEW FIBRE REACTIVE AZO, ANTHRAQUINONE, FORMAZANE AND PHTHALOCYANINE DYESTUFFS ARE DESCRIBED WHICH POSSESS AS FIBRE REACTIVE MOIETY A CYANAMIDE-TRIAZINYL GROUPING OF THE FORMULA 2-HAL,4-(NC-N(-R'')-),6-((-)N(-R)-)-S-TRIAZINE WHEREIN R AND R'' REPRESENT HYDROGEN OR LOWER ALKYL, BOUND VIA THE -NR-GROUPING TO A RING CARBON ATOM OF THE AFORESAID DYESTUFF.
Inventors
- 👤 H Ackermann
- 👤 H Seiler
- 👤 P Dussy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:26
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04; C09B62/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |