US2862883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil compositions containing acylated polyamine salts
Assignee: Shell Development Co
•
Filing: 1957-01-11
•
Granted: 1958-12-02
•
Expires: 1977-01-11
Abstract
No abstract record available.
Inventors
- 👤 Houghes John
- 👤 Garner Philip James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:45
CPC Classifications
C; C10; C10M; C10M3/00; B; B60; B60T; B60T13/00; B60T13/10; B60T13/58; C10M133/00; C10M133/02; C10M133/16; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/04; C10M2205/22; C10M2207/00; C10M2207/10; C10M2207/14; C10M2207/144; C10M2207/146; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/135; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A LUBRICATING OIL COMPOSITION XCOMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL AND A MINOR BUT DETERGENT AMOUNT OF AN OIL-SOLUBLE MONO-ACYLATED ALIPHATIC POLYAMINE SALT OF AN AROMATIC ACIDIC COMPOUND WHEREIN THE ACIDIC RADICAL IS SELECTED FROM THE GROUP CONSISTING OF PHENOLIC HYDROXY GROUP, CARBOXYLIC ACID AND SULFONIC ACID.
Claim 2
Dependent Claim
50 words
A LUBRICATING OIL COMPOSITION XCOMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL AND A MINOR BUT DETERGENT AMOUNT OF AN OIL-SOLUBLE MONO-ACYLATED ALIPHATIC POLYAMINE SALT OF AN AROMATIC ACIDIC COMPOUND WHEREIN THE ACIDIC RADICAL IS SELECTED FROM THE GROUP CONSISTING OF PHENOLIC HYDROXY GROUP, CARBOXYLIC ACID AND SULFONIC ACID.
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) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |