US3706756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminoalkyl-spirocycloalkanes
Assignee: Novartis Corp
•
Filing: 1969-02-03
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Granted: 1972-12-19
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Expires: 1989-02-03
Abstract
Abstract 1-AMINOALKYL-BENZCYCLOALKANE-2-SPIROCYCLOALIPHATIC COMPOUNDS, E.G. THOSE OF THE FORMULA (-B-)>C<(-(CH2)M-1,2-PHENYLENE-C(-R)(-ALK-AM)-) ALK=LOWER ALKYLENE AM=AN AMINO GROUP R=H OR OH; M=1-3 B=LOWER ALKYLENE OR ALKENYLENE ACYL AND 1-DEHYDRO DERIVATIVES, N-OXIDES, QUARTERMARIES AND SALT THEREOF EXHIBIT ANALGETIC EFFECTS.
Inventors
- 👤 Lincoln Harvey Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:28
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/18; C07D211/20; C07D211/22; C07C; C07C213/00; C07C213/02; C07C47/00; C07C47/38; C07C47/453; C07C49/00; C07C49/587; C07C49/657; C07C49/665; C07C49/675; C07C49/753; C07C49/755; C07C2603/00; C07C2603/93; C07C2603/94
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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |