US3575980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5h-dibenzo(a,d)cyclohepten-10-ylpiperazine derivatives
Assignee: Richardson Merrell SpA
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Filing: 1968-03-25
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Granted: 1971-04-20
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Expires: 1988-03-25
Abstract
Abstract NEW EN-AMINES OF THE FORMULA: 10-(R1-(1,4-PIPERAZINYLENE)-), R-5H-DIBENZO(A,D)CYCLOHEPTENE IN WHICH R MAY BE HYDROGEN, HALOGEN, OR LOWER ALKYL, AND R1 REPRESENTS A NITROGEN-CONTAINING SUBSTITUENT, PREFERABLY A CARBOXYAMIDE OR A THIOCARBAMIDE. THESE NEW COMPOUNDS ARE USEFUL BECAUSE OF THEIR PHARMACOLOGICAL ACTIVITIES WHICH INCLUDE MUSCLE RELAXING, ANTI-INFLAMMATORY, ANTI-PYRETIC, ANALGESIC, AND SEDATIVE ACTION. A PREFERRED METHOD OF MAKING THE NEW COMPOUNDS IS DESCRIBED.
Inventors
- 👤 Michele Mastursi
- 👤 Sabino Lembo
- 👤 Rene Viterbo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:29
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07D295/04; C07D295/12
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 |