US3682935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complex nitrogen-containing aromatic borates as stabilizers for organic compositions
Assignee: Mobil Oil AS
•
Filing: 1968-11-25
•
Granted: 1972-08-08
•
Expires: 1988-11-25
Abstract
Abstract Boron and nitrogen compounds are provided that are useful as antioxidants for organic fluids. They are made by reacting salicylaldimines with a product of reaction between a catechol and a boric acid.
Inventors
- 👤 Derek A Law
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:09
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/30; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C09K15/32; C09K15/328; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/301; C10L1/303; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/108; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/062; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
16 words
The compound of claim 1 wherein R'' is hydrogen, R'''' is phenyl and n is 1.
Claim 2
Dependent Claim
16 words
The compound of claim 1 wherein R'' is hydrogen, R'''' is cyclohexyl and n is 1.
Claim 3
Dependent Claim
11 words
The compound of claim 1 wherein R'' is hydrogen, R'''' is
Claim 4
Dependent Claim
16 words
The compound of claim 1 wherein R'' is hydrogen, R'''' is n-butyl and n is 1.
Claim 5
Dependent Claim
15 words
The compound of claim 1 wherein R'' is hydrogen, R''''is n-octyl and n is 1.
Claim 6
Dependent Claim
16 words
The compound of claim 1 wherein R'' is hydrogen, R'''' is n-tetradecyl and n is 1.
Claim 7
Dependent Claim
16 words
The compound of claim 1 wherein R'' is hydrogen, R'''' is n-hexadecyl and n is 1.
Claim 8
Dependent Claim
16 words
The compound of claim 1 wherein R'' is hydrogen, R'''' is dodecylphenyl and n is 1.
Claim 9
Dependent Claim
15 words
The compound of claim wherein R'' is dodecyl, R'''' is phenyl and n is 3.
References Cited (Backward Citations)
US3103532A
Cited
US3256310A
Cited
US3446808A
Cited
US3445498A
Cited
US3410856A
Cited
US3361672A
Cited
US3442807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |