US3009913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigments of the dioxazine series
Assignee: Novartis AG
•
Filing: 1958-05-02
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Granted: 1961-11-21
•
Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
- 👤 Pugin Andre
- 👤 Stocker Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:20
CPC Classifications
C; C09; C09B; C09B19/00; C09B19/02; D; D06; D06P; D06P1/00; D06P1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A DIOXAZINE PIGMENT WHICH CORRESPONDS TO THE FORMULA WHICH IS FREE FROM CARBOXYLIC AND SULPHONIC ACID GROUPS,
Claim 2
Dependent Claim
17 words
A DIOXAZINE PIGMENT WHICH CORRESPONDS TO THE FORMULA WHICH IS FREE FROM CARBOXYLIC AND SULPHONIC ACID GROUPS,
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) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |