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US3884822A
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Lubricant composition containing 3-amidopyridine corrosion inhibitor
Assignee: Mobil Oil AS
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Filing: 1973-07-06
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Granted: 1975-05-20
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Expires: 1993-07-06
Abstract
Abstract Lubricant compositions containing, in an amount sufficient to inhibit metal corrosion, an amidopyridine obtained by reacting an aminopyridine and oleic acid.
Inventors
- 👤 Jr Robert M Gemmill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:25
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/75; C10; C10M; C10M133/00; C10M133/02; C10M133/38; C10M133/40; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/028; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2211/00; C10M2211/02; C10M2215/00; C10M2215/10; C10M2215/102; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2227/00; C10M2227/02; C10M2227/04; C10M2227/08; C10M2227/081; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
27 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT OF A LUBRICATING OIL OR GREASE CONTAINING, IN AN AMOUNT SUFFICIENT TO INHIBIT METAL CORROSION, A 3-AMIDOPYRIDINE HAVING THE STRUCTURE:
Claim 2
Dependent Claim
27 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT OF A LUBRICATING OIL OR GREASE CONTAINING, IN AN AMOUNT SUFFICIENT TO INHIBIT METAL CORROSION, A 3-AMIDOPYRIDINE HAVING THE STRUCTURE:
Claim 3
Dependent Claim
15 words
A composition as defined in claim 1 wherein said lubricant comprises a mineral oil-based composition.
Claim 4
Dependent Claim
15 words
A composition as defined in claim 1 wherein said lubricant comprises a synthetic oil-based composition.
Claim 5
Dependent Claim
33 words
A composition as defined in claim 1 wherein said lubricant comprises an oil of lubricating viscosity in the range from about 45 SSU at 100* F. to about 6,000 SSU at 100* F.
Claim 6
Dependent Claim
33 words
A composition as defined in claim 1 wherein said lubricant comprises an oil of lubricating viscosity in the range from about 50 SSU at 210* F. to about 250 SSU at 210* F.
Claim 7
Dependent Claim
23 words
A composition as defined in claim 1 wherein said amidopyridine is present in an amount from about 0.1 to about 5%, by weight.
Claim 8
Dependent Claim
23 words
A composition as defined in claim 1 wherein said amidopyridine is present in an amount from about 0.3 to about 3%, by weight.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |