US3632591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1 2 3 4 5 6 - hexahydro-3-(cycloaliphatic or cycloaliphatic 11-dimethyl-2 alkyl)-66-methano-3-benzazocines
Assignee: STWB Inc
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Filing: 1968-07-19
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Granted: 1972-01-04
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Expires: 1988-07-19
Abstract
Abstract 1,2,3,4,5,6 - HEXAHYDRO-3-(Y1)-8-(Y2)-6,11-DIMETHYL2,6-METHANO-3-BENZAZOCINES WHEREIN Y1 IS 2- OR 3-CYCLOPENTENYL, LOWER ALKYL-(2 OR 3 - CYCLOPENTENYL), CYCLOPENTENYLMETHYL, (LOWER ALKYL - CYCLOPENTENYL) METHYL, CYCLOPENTYL, OR LOWER ALKYL-CYCLOPENTYL, WHICH ARE ANTAGONISTS OF STRONG ANALGESICS, ARE OBTAINED BY INTRODUCING THE Y1 GROUP INTO THE CORRESPONDING 3-(H) COMPOUNDS.
Inventors
- 👤 Noel F Albertson
- 👤 Sydney Archer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:38
CPC Classifications
C; C07; C07D; C07D221/00; C07D221/02; C07D221/22; C07D221/26
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |