Patent US5686739A successfully refreshed from Google Patents.
Patent US3997548A successfully refreshed from Google Patents.
US3997548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxy-2,1-benzisothiazoles
Assignee: Gulf Research and Development Co
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Filing: 1975-05-28
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Granted: 1976-12-14
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Expires: 1995-05-28
Abstract
Abstract 2,1-Benzisothiazolyl N-lower alkyl- or N,N-di-lower alkylcarbamates are prepared from novel hydroxy-2,1-benzisothiazoles and alkoxy-2,1-benzisothiazoles. 2,1-Benzisothiazol-4-yl N-methylcarbamate is an effective insecticide.
Inventors
- 👤 Gary M. Singerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:57
CPC Classifications
C; C07; C07D; C07D275/00; C07D275/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
7 words
A compound having the general formula ##STR3##
Claim 2
Dependent Claim
7 words
A compound having the general formula ##STR3##
Claim 3
Dependent Claim
6 words
4-Hydroxy-2,1-benzisothiazole in accordance with claim 1.
Claim 4
Dependent Claim
6 words
5-Hydroxy-2,1-benzisothiazole in accordance with claim 1.
Claim 5
Dependent Claim
6 words
6-Hydroxy-2,1-benzisothiazole in accordance with claim 1.
Claim 6
Dependent Claim
6 words
7-Hydroxy-2,1-benzisothiazole in accordance with claim 1.
References Cited (Backward Citations)
US3187001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-14 | 1980-06-14 | 1980-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-14 | 1984-06-14 | 1984-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-14 | 1988-06-14 | 1988-12-14 | $7700.00 | Window Closed / Lapsed |