Patent US3784564A successfully refreshed from Google Patents.
US3784564A
Expired / Lapsed
US
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Acetoacetanilide substituted by a phenylcarbamoyloxy group
Assignee: BASF SE
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Filing: 1971-06-14
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Granted: 1974-01-08
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Expires: 1991-06-14
Abstract
Abstract NEW AND VALUABLE SUBSTITUTED ACETOACETANILIDES IN WHICH THE ACETOACETANILIDE IS SUBSTITUTED IN THE META-POSITION BY A PHENYLCARBAMOYLOXY GROUP OF THE FORMULA -OOC-NH-R WHERE R IS PHENYL OR PHENYL SUBSTITUTED BY CHLORINE, BROMINE, IODINE, FLUORINE, METHYL, ETHYL, CHLOROMETHYL, TRIFLUOROMETHYL, METHOXY, CETHOXY, ALLYLOXY AND PROPRGLYLOXY, THESE COMPOUNDS ARE USEFUL AS HERBICIDES.
Inventors
- 👤 W Rohr
- 👤 A Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:13
CPC Classifications
C; C07; C07C; C07C271/00; C07C271/06
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |