US3816436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain pyridylmethylsulfinyl-carbamates
Assignee: Zeneca Inc
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Filing: 1972-08-14
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Granted: 1974-06-11
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Expires: 1992-08-14
Abstract
Abstract HERBICIDAL ACTIVE SULFOXIDE COMPOUNDS ARE DESCRIBED HEREIN. THE COMPOUNDS HAVING THE FOLLOWING GENERAL FORMULA: R-SO-CO-N(-R1)-R2 WHEREIN R IS SELECTED FROM PYRIDYLALKYL, R1 AND R2 TAKEN TOGETHER FORM A HETEROCYCLIC RING STRUCTURE HAVING FROM 2 TO 10 CARBON ATOMS.
Inventors
- 👤 F Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:31
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/32; C07D213/34
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |