Patent US4113740A successfully refreshed from Google Patents.
US3657291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3 11-dihalo-2 3 7 11-tetra-alkyl-4 6-dienoic acid esters
Assignee: Czech Academy of Sciences
•
Filing: 1969-09-25
•
Granted: 1972-04-18
•
Expires: 1989-09-25
Abstract
Abstract METHODS EMPOLYING AND COMPOSITIONS COMPRISING NOVEL 3,11-DIHALIDES OF ESTERS OF 2,7,11-TRIALKYL-3-ALKYLENE-4,6, 10-TRIENOIC ACIDS USEFUL 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
2026-11-06 19:35
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/52; C07C69/587; C07C45/00; C07C45/27; C07C45/29; C07C45/298; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/74; C07C49/00; C07C49/20; C07C49/203; Y; Y10; Y10S; Y10S424/00; Y10S424/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |