US3823150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(furfuryl-methyl)-6,7-benzomorphans and acid addition salts thereof
Assignee: Individual
•
Filing: 1972-02-01
•
Granted: 1974-07-09
•
Expires: 1992-02-01
Abstract
Abstract COMPOUNDS OF THE FORMULA 3-((R3-FURYL)-CH2-),6-R1,8-(RO-),11-R2,1,2,3,4,5,6-HEXAHY DRO-2,6-METHANO-3-BENZAZOCINE WHEREIN R IS HYDROGEN, METHYL OR ACETYL, R1 IS HYDROGEN, METHYL, ETHYL, N-PROPYL, ISOPROPYL OR BUTYL, AND R2 AND R3 ARE EACH HYDROGEN, METHYL OR ETHYL, AND THEIR NON-TOXIC, PHARMACOLOGICALLY ACCEPTABLE ACID ADDITION SALTS; THE COMPOUNDS AS WELL AS THEIR SALTS ARE USEFUL AS OPIATE ANTAGONISTS NON-NARCOTIC ANALGESICS AND ANTITUSSIVES.
Inventors
- 👤 H Merz
- 👤 A Langbein
- 👤 H Wick
- 👤 K Stockhaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:33
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; 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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |