US2826588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
J-di-substituted pyrrolidine compounds
Assignee: —
•
Filing: —
•
Granted: 1958-03-11
•
Expires: 1975-03-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:54
CPC Classifications
C; C07; C07D; C07D409/00; C07D409/02; C07D409/04; C07D207/00; C07D207/02; C07D207/30; C07D207/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A 3-SUBSTITUTED PYRROLIDINE COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
7 words
A 3-SUBSTITUTED PYRROLIDINE COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2708194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |