Patent US4196301A successfully refreshed from Google Patents.
US4196301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2,4,6-Trialkyl-3-hydroxybenzylmalonate
Assignee: BASF Corp
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Filing: 1978-03-30
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Granted: 1980-04-01
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Expires: 1998-03-30
Abstract
Abstract Ester and amides having the formula ##STR1## wherein R, R 1 and R 2 are independently lower alkyl or cycloalkyl groups, R 3 is hydrogen, alkyl, cycloalkyl, alkylene, phenyl, phenyl substituted by alkyl groups, alkylthioethyl, thiobis-alkylene, alkyleneoxyalkylene, polyoxyalkylene or a polyvalent cyclic or acyclic hydrocarbon radical, R 4 is hydrogen, lower alkyl, cycloalkyl, R 5 is hydrogen, alkyl, phenyl, phenyl substituted by alkyl groups, alkylene, a polyvalent cyclic or acyclic hydrocarbon radical or alkyleneoxyalkylene, A is lower alkylene, m is 1 to 4 and n is 1 to 6.
Inventors
- 👤 John d. Spivack
- 👤 Martin Dexter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:24
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/18; C07D295/182; C07D295/185; C07C; C07C255/00; C07C59/00; C07C59/40; C07C59/42; C07C59/52; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/134; C08K5/1345; C08K5/16; C08K5/20; C08K5/36; C08K5/37; C10; C10M; C10M129/00; C10M129/02; C10M129/68; C10M133/00; C10M133/02; C10M133/16; C10M133/38; C10M133/40; C10M135/00; C10M135/20; C10M135/22; C10M135/24; C10M2201/00; C10M2201/06; C10M2201/063; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/124; C10M2207/125; C10M2207/128; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10M2219/085; C10N; C10N2040/00; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
The compound di-n-octadecyl 4-tert.-butyl-2,6-dimethyl-3-hydroxybenzylmalonate.
Claim 2
Dependent Claim
4 words
The compound di-n-octadecyl 4-tert.-butyl-2,6-dimethyl-3-hydroxybenzylmalonate.
References Cited (Backward Citations)
US2297911A
Cited
US3721704A
Cited
US3646110A
Cited
US3789064A
Cited
US3678095A
Cited
US3984460A
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US3956361A
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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) | 1983-04-01 | 1983-10-01 | 1984-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-01 | 1987-10-01 | 1988-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-01 | 1991-10-01 | 1992-04-01 | $7700.00 | Window Closed / Lapsed |