US3341345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid solutions of a quinacridone and n, n'-diaryl-diamino compounds
Assignee: Novartis Corp
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Filing: 1966-01-18
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Granted: 1967-09-12
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Expires: 1986-01-18
Abstract
No abstract record available.
Inventors
- 👤 Ehrich Felix Frederick
- 👤 William S Struve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:58
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0025; C09B67/0027; C09B48/00; C09B67/0033; C09B67/0034; C09B67/0036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A SOLID SOLUTION CONSISTING ESSENTIALLY OF AT LEAST ONE QUINACRIDONE COMPOUND SELECTED FROM THE GROUP OF COMPOUNDS HAVING THE STRUCTURAL FORMULAS
Claim 2
Dependent Claim
21 words
A SOLID SOLUTION CONSISTING ESSENTIALLY OF AT LEAST ONE QUINACRIDONE COMPOUND SELECTED FROM THE GROUP OF COMPOUNDS HAVING THE STRUCTURAL FORMULAS
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |