US3657440A
Expired / Lapsed
US
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Aminoalkyl-spirocycloalkanes as analgetic agents
Assignee: Novartis Corp
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Filing: 1968-04-23
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Granted: 1972-04-18
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Expires: 1988-04-23
Abstract
Abstract 1-AMINOALKYL-BENZCYCLOALKANE-2-SPIROCYCLOALIPHATIC COMPOUNDS, E.G. THOSE OF THE FORMULA (CH2)M<(-(-B-)>C-C(-R)(-ALK-AM)-(1,2-PHENYLENE)-) ALK=LOWER ALKYLENE AM=AN AMINO GROUP R=H OR OH B=LOWER ALKYLENE OR ALKYLENE M=1-3 ACYL AND 1-DEHYDRO DERIVATIVES, SALTS AND QUATERNARIES THEREOF EXHIBIT ANALGETIC EFFECTS.
Inventors
- 👤 Lincoln Harvey Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:03
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/18; C07D211/20; C07D211/22
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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |