Patent US3749730A successfully refreshed from Google Patents.
US3749730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain n-benzoyl-1,2,5,6-tetrahydropyridines
Assignee: Zeneca Inc
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Filing: 1972-02-10
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Granted: 1973-07-31
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Expires: 1992-02-10
Abstract
Abstract COMPOUNDS OF THE FORMULA 1-(R-C6H4-CO-)-1,2,3,6-TETRAHYDROPYRIDINE WHEREIN R IS ALKYL HAVING 1 TO 4 CARBON ATOMS, ALKOXY HAVING 1 TO 4 CARBON ATOMS OR HALOGEN AND THEIR USE AS INSECT REPELLENTS.
Inventors
- 👤 D Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:31
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/68; C07D211/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |