Patent EP0115160A2 successfully refreshed from Google Patents.
US3594479A
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Composition and method for preventing bronchospasms using pyrazine derivatives
Assignee: Imperial Chemical Industries Ltd
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Filing: 1970-01-29
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Granted: 1971-07-20
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Expires: 1990-01-29
Abstract
Abstract NOVEL S-TRIAZOLO(4,3-A)PYRAZINE DERIVATIVES BEARING ALKYL SUBSTITUENTS IN THE PYRAZINC RING AND AN AMINO, HYDROXY, ACETAMIDO OR FORMAMIDO SUBSTITUENT IN THE TRIAZOLE RING, WHICH PREVENT BRONCHOSPASM AND ARE USEFUL IN THE TREATMENT OF ASTHMA.
Inventors
- 👤 John Anthony Maguire
- 👤 Francis Leslie Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:12
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |