US2958694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-(aroylalkyl)-4-(2'-pyridyl) piperazines
Assignee: Individual
•
Filing: 1959-06-22
•
Granted: 1960-11-01
•
Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Janssen Paul Adriaan Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:05
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/81; C07D213/82; C07D213/72; C07D213/74; C07D213/84; C07D213/85; C07D409/00; C07D409/02; C07D409/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A COMPOUND OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
6 words
A COMPOUND OF 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) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |