US3074952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-alkoxy piperidines
Assignee: Individual
•
Filing: 1961-01-30
•
Granted: 1963-01-22
•
Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Casy Alan Frederick
- 👤 Beckett Arnold Heyworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:51
CPC Classifications
C; C07; C07D; C07D405/00; C07D405/02; C07D405/04; C07D409/00; C07D409/02; C07D409/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A CHEMICAL COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND ITS NONTOXIC, PHARMACEUTICALLY ACCEPTABLE, ACID ADDITION SALTS THE FREE BASE HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
26 words
A CHEMICAL COMPOUND OF THE CLASS CONSISTING OF A FREE BASE AND ITS NONTOXIC, PHARMACEUTICALLY ACCEPTABLE, ACID ADDITION SALTS THE FREE BASE HAVING THE STRUCTURAL 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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |