Patent US4397055A successfully refreshed from Google Patents.
Patent US2709169A successfully refreshed from Google Patents.
US2709169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X c chs
Assignee: —
•
Filing: —
•
Granted: 1955-05-24
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Expires: 1972-05-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:52
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
99 words
A PROCESS OF MAKING DERIVATIVES OF PIPERAZINE SUBENT KINDS, WHEREIN ONE OF SAID GROUPS IS SELECTED FROM THE GROUP CONSISTING OF THE BENZHYDRYL RADICAL AND THE BENZHYDRYL RADICAL SUBSTITUTED BY AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF CHLORO, BROMO, LOWER ALKOXY AND LOWER ALKYL, AND THE OTHER OF SAID GROUPS IS SELECTED FROM THE GROUP CONSISTING OF THE BENZYL RADICAL AND THE BENZYL RADICAL SUBSTITUTED BY AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF CHLORO, BROMO, LOWER ALKOXY AND LOWER ALKYL, SAID PROCESS COMPRISISNG REACTING A 1-ARALKYLPIPERAZINE WITH A HALOGEN DERIVATIVE OF THE OTHER ARALKYL GROUP.
Claim 2
Dependent Claim
99 words
A PROCESS OF MAKING DERIVATIVES OF PIPERAZINE SUBENT KINDS, WHEREIN ONE OF SAID GROUPS IS SELECTED FROM THE GROUP CONSISTING OF THE BENZHYDRYL RADICAL AND THE BENZHYDRYL RADICAL SUBSTITUTED BY AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF CHLORO, BROMO, LOWER ALKOXY AND LOWER ALKYL, AND THE OTHER OF SAID GROUPS IS SELECTED FROM THE GROUP CONSISTING OF THE BENZYL RADICAL AND THE BENZYL RADICAL SUBSTITUTED BY AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF CHLORO, BROMO, LOWER ALKOXY AND LOWER ALKYL, SAID PROCESS COMPRISISNG REACTING A 1-ARALKYLPIPERAZINE WITH A HALOGEN DERIVATIVE OF THE OTHER ARALKYL GROUP.
Claim 3
Dependent Claim
49 words
A 1,4-ARALKYLPIPENAZINE @SP R-N(C4H)N-R'' @SP WHEREIN R AND R'' REPRESENT ARALKYL GROUPS OF DIFFERENT KINDS, ONE OF SAID GROUPS BEING A BENZHYDRYL RADICAL SUBSTITUTED ON THE AROMATIC NUCLEUS BY CHLORO AND THE OTHER OF SAID ARALKYL GROUPS IS A BENZYL RADICAL SUBSTITUTED ON THE AROMATIC NUCLEUS BY LOWER ALKYL.
Claim 4
Dependent Claim
49 words
A 1,4-ARALKYLPIPENAZINE @SP R-N(C4H)N-R'' @SP WHEREIN R AND R'' REPRESENT ARALKYL GROUPS OF DIFFERENT KINDS, ONE OF SAID GROUPS BEING A BENZHYDRYL RADICAL SUBSTITUTED ON THE AROMATIC NUCLEUS BY CHLORO AND THE OTHER OF SAID ARALKYL GROUPS IS A BENZYL RADICAL SUBSTITUTED ON THE AROMATIC NUCLEUS BY LOWER ALKYL.
References Cited (Backward Citations)
US2415785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |