US3832328A
Expired / Lapsed
US
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Organic compositions stabilized with phenolic thiocarboxylic acid esters
Assignee: Novartis AG
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Filing: 1971-08-09
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Granted: 1974-08-27
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Expires: 1991-08-09
Abstract
Abstract COMPOUNDS OF THE FORMULAE R3-(1-(HO-),2-R1,4-(-O-CO-X-S-CH2-),6-R2-BENZENE)N AND R3-(1-(-O-CO-X-S-CH2-),2-(HO-),3-R1,5-R2-BENZENE)N ARE USED AS STABILIZERS FOR ORGANIC COMPOSITIONS. IN THE FORMULAE N IS AN INTEGER FROM 1 TO 4 R1 AND R2 ARE ALKYL R3 FOR N=1, IS A MEMBER OF THE GROUP CONSISTING OF SULFUR INTERRUPTED ALKYL, OXYGEN INTERRUPTED ALKYL, ALKYL, PHENYL, BENZYL AND PHENYL HAVING ALKYL SUBSTITUTES; FOR N=2, ALKYLENE; FOR N=3, ALKTRIYL AND FOR N=4, ALKTETRAYLAND X IS ALKYLENE.
Inventors
- 👤 H Eggensperger
- 👤 V Frenzen
- 👤 H Muller
- 👤 H Stephan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:51
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/375; C09; C09K; C09K15/00; C09K15/04; C09K15/12; C09K15/14; C11; C11B; C11B5/00; C11B5/0071; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10N; C10N2050/00; C10N2050/015; C10N2050/02
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |