US3793329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(furyl-methyl)-3-oxy-morphinans and salts thereof
Assignee: Individual
•
Filing: 1972-02-09
•
Granted: 1974-02-19
•
Expires: 1992-02-09
Abstract
Abstract COMPOUNDS OF THE FORMULA 11-((R1-FURYL)-CH2-),6-(R-O-)-1,2,3,9,10,10A-HEXAHYDRO- 4H-10,4A-IMINOETHANOPHENANTHRENE WHEREIN R IS HYDROGEN, METHYL OR ACETYL, AND R1 IS HYDROGEN, METHYL OR ETHYL, AND NON-TOXIC, PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF; 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
2026-10-23 11:41
CPC Classifications
C; C07; C07D; C07D405/00; C07D405/02; C07D405/06
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |