Patent US3282939A successfully refreshed from Google Patents.
US3282939A
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Stabilization of organic material with stabilizers containing a substituted phenol group
Assignee: Novartis Corp
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Filing: 1963-04-29
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Granted: 1966-11-01
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 John D Spivack
- 👤 Dexter Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:13
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08K; C08K5/00; C08K5/16; C08K5/20; C09; C09K; C09K15/00; C09K15/04; C09K15/20; C09K15/24; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/402; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10N; C10N2050/00; C10N2050/015; C10N2050/02; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE STABILIZER COMPOUND OF THE FORMULA: 2-R1,4-(R3-N(-R4)-CO-A-),6-R2-PHENOL WHEREIN A IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYLENE AND ISO-LOWER-ALKYLENE; R1 IS A TERTIARY ALKYL GROUP, HAVING 4 TO 18 CARBON ATOMS; R2 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKYL, HAVING FROM 1 TO 18 CARBON ATOMS, AND HYDROGEN; R3 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF (I) ALKYL, HAVING FROM 1 TO 24 CARBON ATOMS, (II) HYDROGEN, (III) -CH2CH2- WHEN R4 IS THE
Claim 2
Dependent Claim
81 words
THE STABILIZER COMPOUND OF THE FORMULA: 2-R1,4-(R3-N(-R4)-CO-A-),6-R2-PHENOL WHEREIN A IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYLENE AND ISO-LOWER-ALKYLENE; R1 IS A TERTIARY ALKYL GROUP, HAVING 4 TO 18 CARBON ATOMS; R2 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKYL, HAVING FROM 1 TO 18 CARBON ATOMS, AND HYDROGEN; R3 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF (I) ALKYL, HAVING FROM 1 TO 24 CARBON ATOMS, (II) HYDROGEN, (III) -CH2CH2- WHEN R4 IS THE
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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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |