US2934542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(3, 4-methylenedioxyphenyl)-cyclopropylamines
Assignee: Smith Kline & French Laboratories Ltd
•
Filing: 1958-09-22
•
Granted: 1960-04-26
•
Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 Burger Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:47
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/44; C07D317/46; C07D317/48; C07D317/50; C07D317/60; C07D317/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A CHEMICAL COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND ITS NOTOXIC, PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS, SAID FREE BASE HAVING THE FORMULA:
Claim 2
Dependent Claim
25 words
A CHEMICAL COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND ITS NOTOXIC, PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS, SAID FREE BASE HAVING THE FORMULA:
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) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |