Patent US3149112A successfully refreshed from Google Patents.
US3149112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Z-diethylaminoethoxy
Assignee: —
•
Filing: —
•
Granted: 1964-09-15
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Expires: 1981-09-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:39
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A COMPOSITION OF MATTER IN WHICH THERE IS ATTACHED TO THE 4H-PYRIDO(1,2-A)-PYRIMIDIN-4-ONE NUCLEUS, THROUGH A LOWER-ALKOXYLENE BRIDGING RADICAL IN TURN ATTACHED BY THE OXYGEN ATOM THEREOF TO THE RING CARBON ATOM IN THE 2-POSITION OF THE SAID NUCLEUS, A SECONDARY AMINO RADICAL IN WHICH THE SUBSTITUENTS ARE HYDROCARBON RADICALS HAVING UP TO TEN CARBON ATOMS, WHICH MAY FORM PART OF A MONOCYCLE. 2. 2 - AMINO - LOWER - ALKYLENEOXY - 4H - PYRIDO(1,2A)-PYRIMIDIN-4-ONE WHEREIN AMINO IS SELECTED FROM THE GROUP CONSISTING OF DILOWER-ALKYLAMINO-, N-PIPERIDINO-, N-MORPHOLINO-, AND N-PYRROLIDINO.
Claim 2
Dependent Claim
88 words
A COMPOSITION OF MATTER IN WHICH THERE IS ATTACHED TO THE 4H-PYRIDO(1,2-A)-PYRIMIDIN-4-ONE NUCLEUS, THROUGH A LOWER-ALKOXYLENE BRIDGING RADICAL IN TURN ATTACHED BY THE OXYGEN ATOM THEREOF TO THE RING CARBON ATOM IN THE 2-POSITION OF THE SAID NUCLEUS, A SECONDARY AMINO RADICAL IN WHICH THE SUBSTITUENTS ARE HYDROCARBON RADICALS HAVING UP TO TEN CARBON ATOMS, WHICH MAY FORM PART OF A MONOCYCLE. 2. 2 - AMINO - LOWER - ALKYLENEOXY - 4H - PYRIDO(1,2A)-PYRIMIDIN-4-ONE WHEREIN AMINO IS SELECTED FROM THE GROUP CONSISTING OF DILOWER-ALKYLAMINO-, N-PIPERIDINO-, N-MORPHOLINO-, AND N-PYRROLIDINO.
References Cited (Backward Citations)
US2749345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |