US3132147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
US3132147A - - Google Patents
Assignee: —
•
Filing: —
•
Granted: 1964-05-05
•
Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:17
CPC Classifications
C; C07; C07D; C07D455/00; C07D455/03; C07D455/04; C07D455/06; C07D455/08; C07D471/00; C07D471/02; C07D471/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PROCESS FOR THE PRODUCTION OF QUINOLIZINE DERIVATIVES, WHICH PROCESS COMPRISES THE STEPS OF (1) REACTING A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
21 words
A PROCESS FOR THE PRODUCTION OF QUINOLIZINE DERIVATIVES, WHICH PROCESS COMPRISES THE STEPS OF (1) REACTING A COMPOUND OF 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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |