Patent US3230223A successfully refreshed from Google Patents.
US3230223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piperazine derivatives
Assignee: Rhone Poulenc SA
•
Filing: 1964-03-23
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Granted: 1966-01-18
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Expires: 1984-03-23
Abstract
No abstract record available.
Inventors
- 👤 Baget Jean Gaston
- 👤 Thouvenot Jacques Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:44
CPC Classifications
A; A61; A61K; A61K31/00; C; C07; C07D; C07D401/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A 4-AMINOQUINOLINE DERIVATIVE OF THE FORMULA:
Claim 2
Dependent Claim
6 words
A 4-AMINOQUINOLINE DERIVATIVE OF THE FORMULA:
References Cited (Backward Citations)
US3142679A
Cited
US3126384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |