US3575990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-ar3-1-(4-ar1-4-ar2-butyl)-4-hydroxy-piperidines
Assignee: Janssen Pharmaceutica NV
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Filing: 1969-09-03
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Granted: 1971-04-20
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Expires: 1989-09-03
Abstract
Abstract COMPOUNDS USEFUL AS NEUROLEPTIC AGENTS DEFINED AS 4ARYL-1-(4,4-DIARYL-BUTYL)-4-HYDROXY-PIPERIDINES.
Inventors
- 👤 Carlos Jan Ernest J Niemegeers
- 👤 Hubert Karel Frans Hermans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:00
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/68; C07D211/72; C07D211/78; C07C; C07C17/00; C07C17/35; C07C17/354; C07C271/00; C07C271/06; C07C271/08; C07C271/10; C07C271/22; C07D211/02; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/52; C07D211/74
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |