US3134761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive dyestuffs containing one or more disulphimide group
Assignee: Novartis AG
•
Filing: 1961-04-28
•
Granted: 1964-05-26
•
Expires: 1981-04-28
Abstract
No abstract record available.
Inventors
- 👤 Ackermann Hans
- 👤 Seiler Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:31
CPC Classifications
C; C09; C09B; C09B62/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
REACTIVE DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
5 words
REACTIVE DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
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Cited
US3040020A
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US2167804A
Cited
US2399739A
Cited
US2766231A
Cited
US2978289A
Cited
US2980665A
Cited
AT214546B
Cited
US3062806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |