Patent US3636080A successfully refreshed from Google Patents.
US3636080A
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US
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Substituted phenylmalonic acid and phenylalkyl malonic acid esters
Assignee: F Hoffmann La Roche AG
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Filing: 1969-04-10
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Granted: 1972-01-18
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Expires: 1989-04-10
Abstract
Abstract BARBITURIC ACID DERIVATIVES OF THE FORMULA 2,4,6-TRI(O=),5-R3,5-((3-R1,4-R2-PHENYL)-(CH2)N-)- HEXAHYDROPYRIMIDINE WHEREIN R1 AND R2 ARE HYDROXY, LOWER ALKOXY OR ARALKOXY; R3 IS HYDROGEN, LOWER ALKYL, LOWER ALKENYL OR LOWER ALKYNYL; AND N IS AN INTEGER FROM 0 TO 2, ARE PREPARED, FROM CORRESPONDINGLY SUBSITUTED DIETHYL(PHENYL)MALONATES. THE PRODUCTS ARE USEFUL AS TRANQUILIZERS.
Inventors
- 👤 Arnold Brossi
- 👤 Antonino Focella
- 👤 Albert Israel Rachlin
- 👤 Sidney Teitel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:55
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/60; C07D239/62; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/505; A61K31/513; A61K31/515
Claims Analysis
Total Claims: 0
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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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |