Patent US3796710A successfully refreshed from Google Patents.
US3796710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1h-2,1,4-benzothiadiazines
Assignee: Imperial Chemical Industries Ltd
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Filing: 1972-03-27
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Granted: 1974-03-12
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Expires: 1992-03-27
Abstract
Abstract 1H-2,1,4-BENZOTHIADIAZINES BEARING A 3-CARBAMATE RADICAL AND A 6- OR 7-BENZOYL OR PHENYLSULPHONYL RADICAL, WHICH ARE USEFUL AS ANTHELMINITICS OR INTERMEDIATES; PROCESSES FOR THEIR MANUFACTURE AND ALSO PHENYLTHIOUREAS USEFUL AS INTERMEDIATES FOR MAKING THE BENZOTHIADIAZINES.
Inventors
- 👤 A Barker
- 👤 J Hadfield
- 👤 P Doyle
- 👤 R Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:48
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/15; C07D285/16; C07C; C07C335/00; C07C335/04; C07C335/24; C07C335/28
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) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |