Patent US3812129A successfully refreshed from Google Patents.
US3812129A
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Piperazinyl substituted alkoxy benzophenones
Assignee: F Hoffmann La Roche AG
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Filing: 1972-04-19
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Granted: 1974-05-21
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Expires: 1992-04-19
Abstract
Abstract NOVEL BENXOPHENONE DERIVATIVES BEARING A PIPERAZINYL SUBSTITUTED LOWER ALKOXY GROUP ARE DISCLOSED TOGETHER WITH PROCESSES FOR PREPARING THESE COMPOUNDS. THESE NOVEL BENZOPHENONES ARE USEFUL AS PSYCHOSEDATIVE AGENTS.
Inventors
- 👤 H Spiegelberg
- 👤 A Edenhofer
- 👤 H Ramuz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:18
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; A; A61; A61K; A61K31/00; C07D203/00; C07D203/04; C07D203/06; C07D203/08; C07D203/10; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/52; C07D211/68; C07D211/70; C07D211/80; C07D211/82; C07D241/00; C07D241/02; C07D241/04; C07D241/06; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07D295/10; C07D295/104; C07D295/108; C07D295/12; C07D295/125; C07D295/13; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22; C07D303/24; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/547; C07F9/553; C07F9/576; C07F9/59
Claims Analysis
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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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |