Patent US3119807A successfully refreshed from Google Patents.
US3119807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyestuffs containing tetrameric cyanogen
Assignee: Novartis AG
•
Filing: 1960-07-11
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Granted: 1964-01-28
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Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 Bossard Werner
- 👤 Ackermann Hans
- 👤 Seiler Herbert
- 👤 Riethmann Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:57
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
DYESTUFF OF THE GENERAL FORMULA
Claim 2
Dependent Claim
5 words
DYESTUFF OF THE GENERAL FORMULA
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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |