Patent US3828046A successfully refreshed from Google Patents.
US3828046A
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US
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(4-(5,10-dihydro-4h-benzo(5,6)cyclohepta(1,2-b)thien-4-yl)-1-piperazinyl-alkyl)-3-alkyl-2-imidazolidinones
Assignee: Novartis Corp
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Filing: 1972-06-08
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Granted: 1974-08-06
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Expires: 1992-06-08
Abstract
Abstract COMPOUNDS OF THE CLASS OF (4-(5,10-DIHYDRO-4H-BENZO(5,6)CYCLOHEPTA(1,2-B)THIEN - 4 - YL) - 1-PIPERAZINYLALKYL)-3-ALKYL-2-IMIDAZOLIDINONES, THEIR 5-METHYL SUBSTITUTED AND THEIR 7-CHLORO- OR 8-CHLORO-SUBSTITUTED DERIVATIVES AS WELL AS THEIR PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS EXHIBIT PHARMACOLOGICAL ACTIVITES DIRECTED TO THE CENTRAL NERVOUS SYSTEM AS IT IS SHOWN BY STANDARD PHARMACOLOGICAL TEST METHODS ON ANIMALS. THE RESULTS OBTAINED RENDER THESE COMPOUNDS SUITABLE FOR USE AS SEDATIVES, HYPNOTICS AND TRANQUILIZERS FOR THE TREATMENT OF SLEEP DISTURBANCES AND STATES OF TENSION AND AGITATION.
Inventors
- 👤 G Doerhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:32
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/12; C07D333/14; C07D333/16; C07D333/24; C07D333/50; C07D333/78; C07D333/80
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |