Patent US3757017A successfully refreshed from Google Patents.
US3757017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4,5 polymethylene pyrimidine derivatives
Assignee: Individual
•
Filing: 1968-01-22
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Granted: 1973-09-04
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Expires: 1988-01-22
Abstract
Abstract NEW 4,5-POLYMETHYLENE-PYRIMIDINE DERIVATIVES OR THE GENERAL FORMULA 2-R1,4,5-(-Z-),6-R2-PYRIMIDINE IN WHICH Z IS A POLYMETHYLENE CHAIN CONTAINING 3 TO 6 CARBON ATOMS R1 IS HYDROGEN, HALOGEN, ALKYL, HYDROXYALKYLAMINO OR MORPHOLINO, R2 IS HYDROGEN, HYDROXYALKYLAMINO, BIS(HYDROXYALKYL) AMINO, N-ALKYL-N-HYDROXYALKYLAMINO OR MORPHOLINO, WITH THE PROVISO THAT WHEN R2 IS HYDROGEN, R1 MUST BE A HYDROXYALKYLAMINO OR MORPHOLINO RADICAL, AS WELL AS THEIR SALTS WITH INORGANIC OR ORGANIC ACIDS. THE COMPOUNDS ARE HYPOTENSIVES, PERIPHERAL AND CORONARY VASODILATORS, DIURETICS, BRONCHODILATORS, SPASMOLYTICS AND CIRCULATORY AND RESPIRATORY ANALEPTICS.
Inventors
- 👤 J Mathieu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:42
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/70; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/505; C07D239/72; C07D239/86; C07D239/94
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |