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Patent US3637674A successfully refreshed from Google Patents.
US3637674A
Expired / Lapsed
US
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Epoxides of esters of 2 4 6 10-tetraenoic acids
Assignee: Czech Academy of Sciences
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Filing: 1969-10-08
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Granted: 1972-01-25
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Expires: 1989-10-08
Abstract
Abstract METHODS EMPLOYING AND COMPOSITIONS COMPRISING NOVEL EPOXIDES OF ESTERS OF 2,4,6-10-TETRAENOIC ACIDS FOR THE CONTROL OF INSECTS.
Inventors
- 👤 Vaclav Jarolim
- 👤 Karel Hejno
- 👤 Karel Slama
- 👤 Frantisek Sorm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:45
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/38; C07D303/40; C07D303/42; C07C; C07C45/00; C07C45/27; C07C45/29; C07C45/298; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/74; C07C49/00; C07C49/20; C07C49/203
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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |