Patent US3758483A successfully refreshed from Google Patents.
US3758483A
Expired / Lapsed
US
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Tetrahydropyridine derivatives
Assignee: F Hoffmann La Roche AG
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Filing: 1971-05-28
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Granted: 1973-09-11
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Expires: 1991-05-28
Abstract
Abstract TETRAHYDROPYRIDINE DERIVATIVES AND PROCESSES FOR THE PREPARATION THEREOF ARE DISCLOSED. THESE TETRAHYDROPYRIDINE COMPOUNDS ARE USEFUL AS PSYCHOSEDATIVE AGENTS.
Inventors
- 👤 A Edenhofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:34
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/04; C07D265/06; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/52; C07D211/68; C07D211/70
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |