US2678321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialkylaminoalkyl amides of alpha, alpha-diaryltoluic acids and their salts
Assignee: GD Searle LLC
•
Filing: 1951-05-07
•
Granted: 1954-05-11
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Expires: 1971-05-07
Abstract
No abstract record available.
Inventors
- 👤 Krimmel Carl Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:49
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A MEMBER OF THE CLASS OF COMPOUNDS CONSISTING OF DIALKYLAMINOALKYL AMIDES OF AN A,ADIARYL SUBSTITUTED TOLUIC ACID OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
21 words
A MEMBER OF THE CLASS OF COMPOUNDS CONSISTING OF DIALKYLAMINOALKYL AMIDES OF AN A,ADIARYL SUBSTITUTED TOLUIC ACID OF THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US2009144A
Cited
US2302805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |