US2956996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylated phenotfflazenecarboxamede
Assignee: —
•
Filing: —
•
Granted: 1960-10-18
•
Expires: 1977-10-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:11
CPC Classifications
C; C07; C07D; C07D279/00; C07D279/10; C07D279/14; C07D279/18; C07D417/00; C07D417/02; C07D417/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A CHEMICAL COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND ITS NONTOXIC, PHARMACEUTICALLY ACCEPTABLE, ACID ADDITION SALTS, THE FREE BASE HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
26 words
A CHEMICAL COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND ITS NONTOXIC, PHARMACEUTICALLY ACCEPTABLE, ACID ADDITION SALTS, THE FREE BASE HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
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Cited
US2272498A
Cited
US2676971A
Cited
US2789978A
Cited
US2877224A
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AT203503B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |