US2667491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyridylethyl ethers and process of making them
Assignee: Reilly Tar and Chemical Corp
•
Filing: 1950-06-02
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Granted: 1954-01-26
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Expires: 1970-06-02
Abstract
No abstract record available.
Inventors
- 👤 Sutherland Leslie Hunt
- 👤 Francis E Cislak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:28
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
7 words
N-DECYL 4-PYRIDYLETHYL ETHER WHOSE STRUCTURAL FORMULA IS:
References Cited (Backward Citations)
US2504098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |