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Patent US3629266A successfully refreshed from Google Patents.
US3629266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
(phenyl piperidino alkyl)3 4-dihydrocarbostyrils
Assignee: Bayer Corp
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Filing: 1969-03-03
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Granted: 1971-12-21
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Expires: 1989-03-03
Abstract
Abstract 1-SUBSTITUTED DERIVATIVES OF 3,4-DIHYDROCARBOSTYRIL THAT ARE USEFUL AS ANALGESIC AGENTS. THESE COMPOUNDS ARE PREPARED BY REACTING A 3,4-DIHYDROCARBOSTYRIL OR SUBSTITUTED 3,4-DIHYDROCARBOSTYRIL WITH A SUITABLE HALOALKYLAMINE.
Inventors
- 👤 Herbert John Havera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:05
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/20; C07D215/22; C07D215/227
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |