US3557148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-amino-4-phenyl-3-buten-2-ols and salts thereof
Assignee: US Philips Corp
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Filing: 1968-10-18
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Granted: 1971-01-19
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Expires: 1988-10-18
Abstract
Abstract STYRYL ETHANOL AMINES SUBSTITUTED IN THE BENZENE RINGS WITH ALKYL ALKYOXY AND ALKYTHIO RADICALS. EXAMPLES ARE 1-AMINO-4-(4-METHOXY-PHENYL)-3-BUTENE-2-OL AND 1-(2-P. ETHOXYPHENYL - 1 - METHYLETHYLAMINO)-4-PHENYL-3-BUTENE-2OL. THE COMPOUNDS EXHIBIT B-SYMPATHOLYTIC ACTIVITIES.
Inventors
- 👤 Hendrik Durk Moed
- 👤 Gerard Bernard Paerels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:22
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/13; A61K31/135; C; C07; C07C; C07C33/00; C07C33/28
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |