US2679501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino derivatives of 2-substituted-4-tert. butylphenol ethers
Assignee: F Hoffmann La Roche AG
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Filing: 1950-06-23
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Granted: 1954-05-25
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Expires: 1970-06-23
Abstract
No abstract record available.
Inventors
- 👤 Wenner Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:45
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; A; A01; A01N; A01N37/00; A01N37/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-PHENYL-4-TERT.BUTYLPHENOL B - (1PIPERIDYL) ETHYL ETHER, 2-CHLORO - 4 - TERT.BUTYLPHENOL B-BENZYLAMINOETHYL ETHER, 2-CHLORO-4TERT.BUTYLPHENOL B-CYCLOHEXYLAMINOETHYL ETHER, 2-METHYL-4-TERT.BUTYLPHENOL B - DIMETHYLAMINOETHYL ETHER, AND 2-CHLORO-4-TERT.BUTYLPHENOL BDIETHYLAMINOETHYL ETHER.
Claim 2
Dependent Claim
33 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-PHENYL-4-TERT.BUTYLPHENOL B - (1PIPERIDYL) ETHYL ETHER, 2-CHLORO - 4 - TERT.BUTYLPHENOL B-BENZYLAMINOETHYL ETHER, 2-CHLORO-4TERT.BUTYLPHENOL B-CYCLOHEXYLAMINOETHYL ETHER, 2-METHYL-4-TERT.BUTYLPHENOL B - DIMETHYLAMINOETHYL ETHER, AND 2-CHLORO-4-TERT.BUTYLPHENOL BDIETHYLAMINOETHYL ETHER.
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) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |