US3705159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicidal 2,4-di(substituted) amino-6-chloro pyrimidines
Assignee: Sandoz AG
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Filing: 1971-03-01
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Granted: 1972-12-05
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Expires: 1991-03-01
Abstract
Abstract THE INVENTION CONCERNS NOVEL COMPOUNDS OF THE FORMULA: 2-(Z-CO-NH-),4-(R1-N(-R2)-),6-CL-PYRIMIDINE WHEREIN R1 IS HYDROGEN OR ALKYL OF 1 TO 6 CARBON ATOMS, R2 IS ALKYL OF 1 TO 6 CARBON ATOMS, AND Z IS ALKOXY OF 1 TO 6 CARBON ATOMS, PHENYL, PHENOXY, MONOALKYLAMINO OF 1 TO 6 CARBON ATOMS, DIALKYLAMINO, EACH ALKYL SUBSTITUENT THEREOF HAVING 1 TO 6 CARBON ATOMS, ALKYL OF 1 TO 6 CARBON ATOMS, OR HALOGENATED ALKYL OF 1 TO 6 CARBON ATOMS, AND AGRICULTURALLY ACCEPTABLE ACID ADDITION SALTS THEREOF. THE COMPOUNDS ARE HERBICIDES, AND POSSESS A SELECTIVE HERBICIDAL EFFECT IN COTTON, POTATO, LEEK AND MAIZE CROPS.
Inventors
- 👤 Rupert Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:06
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/48
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) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |