Patent US3743731A successfully refreshed from Google Patents.
US3743731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted benzazepines for producing skeletal muscle relaxation
Assignee: Merck Sharp & Dohme LLC
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Filing: 1971-03-16
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Granted: 1973-07-03
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Expires: 1991-03-16
Abstract
Abstract THIS DISCLOSURE RELATES TO SUBSTITUTED 1-PHENYL-2,3,4,5TETRAHYDRO-1H-3-BENZAZEPINES, TO METHODS FOR THEIR PREPARATION, AND TO THEIR USE AS MUSCLE RELAXANTS.
Inventors
- 👤 L Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:48
CPC Classifications
C; C07; C07D; C07D223/00; C07D223/14; C07D223/16; C07D491/00; C07D491/02; C07D491/04
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |