Patent US3795613A successfully refreshed from Google Patents.
US3795613A
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US
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Lubricating composition
Assignee: Chevron USA Inc
•
Filing: 1972-08-07
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Granted: 1974-03-05
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Expires: 1992-08-07
Overview & Biblio
Claims (0)
Citations (0)
Maintenance Schedule (3)
Categories & Tags (0)
Abstract
Abstract A LUBRICATING COMPOSITION HAVING IMPROVED LOW-WEAR PROPERTIES IS DISCLOSED AND COMPRISES A MIXTURE OF AN OIL OF LUBRICATING VISCOSITY AND A BISPHOSPHORAMIDE HAVING THE STRUCTURE: ((R1-)N-Y-)2-P(=O)-X(-(R2)M)-R-X(-(R2)M)-P(=O)(-Y(-R1)N)2 WHEREIN: X IS THE SAME OR DIFFERENT NITROGEN OR OXYGEN; Y IS THE SAME OR DIFFERENT OXYGEN, SULFUR OR NITROGEN AND NITROGEN WHEN BOTH X''S ARE OXYGEN; R IS A HYDROCARBYLENE OR DIHYDROCARBYLENE HAVING FROM 2 TO 13 CARBON ATOMS; R1 IS A HYDROCARBYL HAVING FROM 1 TO 24 CARBONS; R2 IS THE SAME OR DIFFERENT R1 OR A HYDROCARBYLENE HAVING FROM 2 TO 18 CARBON ATOMS WITH ONE END OF EACH R2 BONDING TO THE OTHER R2 OR TO SAID R DIHYDROCARBYLENE; N IS 1 WHEN Y IS OXYGEN OR SULFUR AND 2 WHEN Y IS NITROGEN; AND M IS N-1.
Inventors
Bibliographic Details
Application Number
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Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:46
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/16; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/645; C07F9/6509; C07F9/650952; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/027; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/108; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/08; C10M2215/082; C10M2215/10; C10M2215/102; C10M2215/22; C10M2215/223; C10M2215/224; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/085; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/043; C10M2223/045; C10M2223/047; C10M2223/049; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/10; C10N2040/135; C10N2040/20; C10N2040/22; C10N2040/25; C10N2040/252; C10N2040/253; C10N2040/255; C10N2040/26; C10N2050/00; C10N2050/04; C10N2050/10
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
Annuity Stage
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Estimated Fee
Status
3.5 Years (Year 4) 1977-03-04
1977-09-03 1978-03-05
$2000.00
Window Closed / Lapsed
7.5 Years (Year 8) 1981-03-04
1981-09-03 1982-03-05
$3760.00
Window Closed / Lapsed
11.5 Years (Year 12) 1985-03-04
1985-09-03 1986-03-05
$7700.00
Window Closed / Lapsed