Patent US3720686A successfully refreshed from Google Patents.
US3720686A
Expired / Lapsed
US
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Mercaptobenzimidazole derivatives
Assignee: ER Squibb and Sons LLC
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Filing: 1971-04-01
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Granted: 1973-03-13
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Expires: 1991-04-01
Abstract
Abstract MERCAPTOBENZIMIDAZOLE DERIVATIVES ARE PROVIDED HAVING THE STRUCTURE 1-(R2-CO-),2-(((R1)N''-PHENYL)-NH-CO-Y-S-),(R)N- BENZIMIDAZOLE AND WHICH ARE USEFUL AS ANTHELMINTIC AGENTS.
Inventors
- 👤 V Narayanan
- 👤 R Haugwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:27
CPC Classifications
C; C07; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/28
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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |