US2634274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Basically substituted n-alkyl derivatives of alpha, alpha-ditolylpropion-amide and salts thereof
Assignee: GD Searle LLC
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Filing: 1951-03-10
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Granted: 1953-04-07
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Expires: 1971-03-10
Abstract
No abstract record available.
Inventors
- 👤 Krimmel Carl Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:31
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07C; C07C233/00; C07C233/01; C07C233/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
THE NEW GROUP OF ORGANIC COMPOUNDS CONSISTING OF THE BASICALLY SUBSTITUTED N-ALKYL DERIVATIVES OF A,A-DITOLYLPROPIONAMIDES WHICH MAY BE REPRESENTED BY THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
23 words
THE NEW GROUP OF ORGANIC COMPOUNDS CONSISTING OF THE BASICALLY SUBSTITUTED N-ALKYL DERIVATIVES OF A,A-DITOLYLPROPIONAMIDES WHICH MAY BE REPRESENTED BY THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US2351833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |