US3433781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2,4-dihalogeno-pyrimidine-5-carbamyl-substituted reactive dyes
Assignee: Novartis AG
•
Filing: 1964-02-26
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Granted: 1969-03-18
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Expires: 1984-02-26
Abstract
No abstract record available.
Inventors
- 👤 Hans Ackermann
- 👤 Hermann Frei
- 👤 Hubert Meindl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:01
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A FIBER-REACTIVE DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
6 words
A FIBER-REACTIVE DYESTUFF OF THE FORMULA
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) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |