US2777819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions
Assignee: Shell Development Co
•
Filing: 1954-04-27
•
Granted: 1957-01-15
•
Expires: 1974-04-27
Abstract
No abstract record available.
Inventors
- 👤 Paul H Williams
- 👤 Francis C Younger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:30
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/12; C10M137/14; A; A01; A01N; A01N25/00; A01N25/30; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3808; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2608; C10L1/2625; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/04; C10M2211/044; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/10; C10M2215/102; C10M2215/16; C10M2215/18; C10M2215/20; C10M2215/202; C10M2215/204; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/06; C10M2219/062; C10M2219/064; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/084; C10M2219/086; C10M2219/087; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/047; C10M2223/06; C10M2223/063; C10M2223/12; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/08; C10N2040/135; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT FO MINERAL LUBRICATING OIL AND FROM ABOUT 0.1% TO 10% OF A TERTIARY BRANCHED ALIPHATIC PRIMARY ALKYLAMINE TRICHLORMETHANEPHOSPHONATEA,S AID AMINE PORTION OF THE SALT CONTAINING AT LEAST 8 CARBON ATOMS AND HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
42 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT FO MINERAL LUBRICATING OIL AND FROM ABOUT 0.1% TO 10% OF A TERTIARY BRANCHED ALIPHATIC PRIMARY ALKYLAMINE TRICHLORMETHANEPHOSPHONATEA,S AID AMINE PORTION OF THE SALT CONTAINING AT LEAST 8 CARBON ATOMS AND HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US2683691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |