Patent US3910959A successfully refreshed from Google Patents.
US3910959A
Expired / Lapsed
US
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1-(3,4-Methylenedioxy-phenyl)-4,4-dimethyl-pent-1-en-3-ol
Assignee: NOVAPHARME SARL A CORP OF FRANCE
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Filing: 1973-02-27
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Granted: 1975-10-07
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Expires: 1993-02-27
Abstract
Abstract The compounds of the formula: in which one of R1 and R2 is hydrogen and the other is hydroxyl, or R1 and R2 together represent oxygen, made by condensing piperonal with pinacoline and if desired reducing the ketone obtained to the corresponding alcohol, have interesting pharmacological properties, e.g., as potentiators of narcotics and analgesics.
Inventors
- 👤 Francois Marie Joseph Vallet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:07
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/44; C07D317/46; C07D317/48; C07D317/50; C07D317/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
1-(3,4-METHYLENEDIOXY-PHENYL)-4-4-DIMETHYLPENT-1-EN3-OL.
Claim 2
Dependent Claim
1 words
1-(3,4-METHYLENEDIOXY-PHENYL)-4-4-DIMETHYLPENT-1-EN3-OL.
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |