Patent US3935200A successfully refreshed from Google Patents.
US3935200A
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US
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N,N-disubstituted 2,1,3-benzothiadiazin-(4)-one-2,2-dioxide
Assignee: BASF SE
•
Filing: 1974-10-18
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Granted: 1976-01-27
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Expires: 1994-10-18
Abstract
Abstract New and Valuable substituted 2,1,3-benzothiadiazin-(4)-one-2,2-dioxides having a good herbicidal action and a process for controlling the growth of unwanted plants with these compounds.
Inventors
- 👤 Adolf Fischer
- 👤 Gerhard Hamprecht
- 👤 Rolf Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:55
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/15; C07D285/16
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
78 words
A substituted 2,1,3-benzothiadiazin-(4)-one-2,2-dioxide of the formula ##EQU3## where R 1 , R 2 , R 3 and R 4 are hydrogen or lower alkyl, R 5 is an alkyl radical of 1 to 20 carbon atoms, R 1 and R 5 may also be combined to form a chain containing 2 or 3 methylene radicals, and R 6 is an alkyl radical of 1 to 10 carbon atoms or a lower alkyl substituted by fluoro, chloro or cyclohexyl.
Claim 2
Dependent Claim
78 words
A substituted 2,1,3-benzothiadiazin-(4)-one-2,2-dioxide of the formula ##EQU3## where R 1 , R 2 , R 3 and R 4 are hydrogen or lower alkyl, R 5 is an alkyl radical of 1 to 20 carbon atoms, R 1 and R 5 may also be combined to form a chain containing 2 or 3 methylene radicals, and R 6 is an alkyl radical of 1 to 10 carbon atoms or a lower alkyl substituted by fluoro, chloro or cyclohexyl.
Claim 3
Dependent Claim
1 words
1-(α-ethoxy)-ethyl-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 4
Dependent Claim
1 words
1-(α-ethoxy)-ethyl-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 5
Dependent Claim
1 words
1-(α-methoxy)-ethyl-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 6
Dependent Claim
1 words
1-(α-methoxy)-ethyl-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 7
Dependent Claim
1 words
1-(α-methoxy)-isobutyl-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 8
Dependent Claim
1 words
1-(α-methoxy)-isobutyl-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 9
Dependent Claim
1 words
1-(α-isobutyloxy)-ethyl-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 10
Dependent Claim
1 words
1-(α-isobutyloxy)-ethyl-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 11
Dependent Claim
1 words
1-(α-octadecyloxy)-ethyl-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 12
Dependent Claim
1 words
1-(α-octadecyloxy)-ethyl-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 13
Dependent Claim
1 words
1-(2'-methyltetrahydrofuranyl-5')-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 14
Dependent Claim
1 words
1-(2'-methyltetrahydrofuranyl-5')-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 15
Dependent Claim
1 words
1-(4'-methyltetrahydropyranyl-6')-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 16
Dependent Claim
1 words
1-(4'-methyltetrahydropyranyl-6')-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 17
Dependent Claim
1 words
1-(2',2'-dimethyltetrahydrofuranyl-5')-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
Claim 18
Dependent Claim
1 words
1-(2',2'-dimethyltetrahydrofuranyl-5')-3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide.
References Cited (Backward Citations)
US3287362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |