US3732238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbamoylbenzotriazole anthelmintics
Assignee: Boots Co PLC
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Filing: 1971-07-14
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Granted: 1973-05-08
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Expires: 1991-07-14
Abstract
Abstract N-DIALKYLCARBAMOYLBENZOTRIAZOLES ARE PREPARED BY REACTING THE APPROPRIATE CARBAMOYL CHLORIDE WITH BENZOTRIAZOLE IN THE PRESENCE OF A TERTIARY AMINE. THE COMPOUNDS HAVE ACTIVITY AS ANTHELMINTIC AGENTS. AN EXAMPLE OF THE INVENTION IS (N-METHYL-N-N-HEPTYLCARBAMOYL)BENZOTRIAZOLE AS A MIXTURE OR AS ITS 1 OR 2 ISOMER.
Inventors
- 👤 M W Baker
- 👤 J Crowley
- 👤 T Watkins
- 👤 N Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:57
CPC Classifications
C; C07; C07D; C07D249/00; C07D249/16; C07D249/18
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |