US3170926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-phenylpiperazine compounds
Assignee: May and Baker Ltd
•
Filing: 1961-08-18
•
Granted: 1965-02-23
•
Expires: 1981-08-18
Abstract
No abstract record available.
Inventors
- 👤 Ash Anthony Stanley Fenton
- 👤 Creighton Andrew Malcolm
- 👤 Wragg William Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:25
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/06; C07D295/073; C07D263/00; C07D263/02; C07D263/08; C07D263/16; C07D263/18; C07D263/20; C07D263/22; C07D295/12; C07D295/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER OF THE CLASS CONSISTING OF THE N-PHENYLPIPERAZINE COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
13 words
A MEMBER OF THE CLASS CONSISTING OF THE N-PHENYLPIPERAZINE COMPOUNDS OF THE FORMULA:
References Cited (Backward Citations)
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Cited
US3070606A
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US2647121A
Cited
US2834782A
Cited
US2939816A
Cited
US2927924A
Cited
US2997474A
Cited
US2990327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |