US3299072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thebaine derivatives
Assignee: Smith Kline & French Laboratories Ltd
•
Filing: 1963-10-04
•
Granted: 1967-01-17
•
Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Bartels-Keith James Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:15
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/04; C07D489/00; C07D489/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
26 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A BASE, ITS N-OXIDE DERIVATIVE AND ITS PHARAMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS, SAID BASE BEING OF THE STRUCTURE:
Claim 2
Dependent Claim
26 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A BASE, ITS N-OXIDE DERIVATIVE AND ITS PHARAMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS, SAID BASE BEING OF THE STRUCTURE:
Claim 3
Dependent Claim
3 words
N-CYCLOPROPYLMETHYL-$6-DIHYDRONORORIPAVINE. 14. $6-DIHYDRONORTHEBAINE.
Claim 4
Dependent Claim
3 words
N-CYCLOPROPYLMETHYL-$6-DIHYDRONORORIPAVINE. 14. $6-DIHYDRONORTHEBAINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |