US3511826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyestuffs containing 2-chlorothiazoleand benzthiazole-sulfonyl groups
Assignee: Pechiney SA
•
Filing: 1962-01-10
•
Granted: 1970-05-12
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Expires: 1982-01-10
Abstract
No abstract record available.
Inventors
- 👤 Roland Jean Dominique Tosan
- 👤 Aime Joseph Arsac
- 👤 Fidele Domenech
- 👤 Pierre Jules Emile Bourguignon
- 👤 Jean Andre Paul Kienzle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:18
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C09; C09B; C09B62/00; C09B62/02; C09B62/343; C09B62/3435; D; D06; D06P; D06P1/00; D06P1/38; D06P1/382
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A REACTIVE DYESTUFF CHARACTERIZED BY HAVING ONE OF THE FOLLOWING FORMULAE:
Claim 2
Dependent Claim
11 words
A REACTIVE DYESTUFF CHARACTERIZED BY HAVING ONE OF THE FOLLOWING FORMULAE:
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) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |