Patent US3827979A successfully refreshed from Google Patents.
US3827979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overbasing manganese compounds with promoters and copromoters
Assignee: Mobil Oil AS
•
Filing: 1971-05-03
•
Granted: 1974-08-06
•
Expires: 1991-05-03
Abstract
Abstract CERTAIN COMPOUND CONTAINING ACID FUNCTIONS ARE OVERBASED WITH MANGANESE BY CARBONATING A SYSTEM CONTAINING THE ACID, A PROMOTER AND A COPROMOTER. AMONG THE ACIDS CONTEMPLATED ARE TALL OIL, SULFONIC ACIDS AND CARBOXYLIC ACIDS SUCH AS NAPHTHENIC ACID. ORGANIC FLUID COMPOSITIONS, AS THOSE FROM LUBRICANTS AND LIQUID HYDROCARBON FUELS, CONTAINING THE OVERBASED PRODUCTS HAVE IMPROVED PROPERTIES. AS EXAMPLES, THE PRODUCTS ACT TO IMPROVE COMBUSTION AND AS SMOKE SUPPRESSANTS IN RESIDUAL FUELS, AND ALSO TO PROVIDE DETERGENCY PROPERTIES TO LUBRICATING OILS.
Inventors
- 👤 A Piotrowski
- 👤 H Andress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:53
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/02; C10L1/00; C10L1/10; C10M; C10M159/00; C10M159/12; C10M159/20; C10L1/12; C10L1/1233; C10L1/14; C10L1/18; C10L1/188; C10L1/24; C10L1/2431; C10L1/2437
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |