US2658076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-dialkylaminoalkyl derivatives of alpha, beta-diarylalkanoamides and their salts
Assignee: GD Searle LLC
•
Filing: 1951-06-12
•
Granted: 1953-11-03
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Expires: 1971-06-12
Abstract
No abstract record available.
Inventors
- 👤 Krimmel Carl Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:48
CPC Classifications
C; C07; C07C; C07C233/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
THE NEW GROUP OF ORGANIC COMPOUNDS CONSISTING OF THE N-DIALKYLAMINOALKYL-A,B-DIARYLALKANOAMIDES OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
14 words
THE NEW GROUP OF ORGANIC COMPOUNDS CONSISTING OF THE N-DIALKYLAMINOALKYL-A,B-DIARYLALKANOAMIDES OF THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US2009144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |