Patent US3576883A successfully refreshed from Google Patents.
US3576883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylidenedithiobisphenols
Assignee: Consolidation Coal Co
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Filing: 1969-06-30
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Granted: 1971-04-27
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Expires: 1989-06-30
Abstract
Abstract COMPOUNDS HAVING THE GENERAL FORMULA: ((3-R1,4-(HO-),5-(C4H9-)PHENYL)-S)2-C(-R2)-CH3 WHERE R1 IS AN ALKYL RADICAL CONTAINING FROM 1 TO 4 CARBON ATOMS, AND R2 IS EITHER HYDROGEN OR AN ALKYL RADICAL CONTAINING FROM 1 TO 3 CARBON ATOMS, PROVIDED THAT WHEN R1 IS METHYL, R2 IS ALSO METHYL. AN EXAMPLE OF THE COMPOUNDS OF THIS INVENTION IS ONE REPRESENTED BY THE FOLLOWING FORMULA: ((3,5-BIS(C4H9-),4-(HO-)PHENYL)-S)2-C(-CH3)2 THE COMPOUNDS ARE USEFUL FOR REDUCING BLOOD CHOLESTEROL IN WARM-BLOODED ANIMALS.
Inventors
- 👤 Martin B Neuworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:29
CPC Classifications
C; C07; C07C; C07C323/00
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |