US3351626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu-cyclopropylmethyl benzmorphan derivatives
Assignee: Smith Kline & French Laboratories Ltd
•
Filing: 1963-01-22
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Granted: 1967-11-07
•
Expires: 1983-01-22
Abstract
No abstract record available.
Inventors
- 👤 Bartels-Keith James Richard
- 👤 Gordon Maxwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:07
CPC Classifications
C; C07; C07D; C07D221/00; C07D221/02; C07D221/22; C07D221/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
20 words
A COMPOUND SELECTED FROM A BASE AND ITS NON-TOXIC SALTS WITH PHARMACEUTICALLY ACCEPTABLE ACIDS, SAID BASE BEING OF THE STRUCTURE:
References Cited (Backward Citations)
US2959594A
Cited
US2924603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |