← Back to Patent Explorer
US3843532A Expired / Lapsed US ⏱️ 0.0 years remaining

Polyphenyl thioether lubricating compositions

Assignee: Monsanto Co
•
Filing: 1973-02-07
•
Granted: 1974-10-22
•
Expires: 1993-02-07
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract WHEREIN R" IS AN ARYL GROUP OF FROM 6 TO 16 CARBON ATOMS, A HALOGEN SUBSTITUTED ARYL GROUP OF FROM 1 TO 16 CARBON ATOMS, AN ARYL SUBSTITUTED ARYL GROUP CONTAINING FROM 6 TO 16 CARBON ATOMS OR AN ALKYL GROUP CONTAINING 1 TO 12 CARBON ATOMS, R'''''' IS HYDROGEN OR AN R" GROUP AND FROM 0.01 TO 0.5 PERCENT BY WEIGHT OF MONOCYCLIC, MONOHYDRIC ALKYL-SUBSTITUTED PHENOLS. R"-P(=O)(-H)-O-R"'' WHEREIN R IS A PHENYL GROUP OR A SUBSTITUTED PHENYL GROUP, R'' IS A PHENYLENE GROUP OR SUBSTITUTED PHENYLENE GROUP, IN WHICH THE SUBSTITUENTS ON SAID PHENYL AND PHENYLENE GROUPS ARE HALOGEN, ALKYL OR ALKOXY CONTAINING FROM 1 TO 4 CARBON ATOMS, N IS AN INTEGER OF FROM 1 TO 6, Y IS SULFUR OR OXYGEN PROVIDED THAT AT LEAST ONE OF THE GROUPS REPRESENTED BY Y IS SULFUR, AND MIXTURES OF SUCH THIOETHERS AND FROM ABOUT 0.05 TO ABOUT 1.0 PERCENT BY WEIGHT OF AN ORGANIC PHOSPHONIC ACID OF THE FORMULA R-Y(R''-Y)N-R 1. A LUBRICANT COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A POLYPHENYL THIOETHER HAVING THE FORMULA

Inventors

  • 👤 F Clark

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 02:31
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/22; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2219/087; C10M2219/089; C10M2221/00; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/06; C10M2223/061; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/08; C10N2040/12; C10N2040/13

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 16 words
A LUBRICANT COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A POLYPHENYL THIOETHER HAVING THE FORMULA
Claim 2
Dependent Claim 16 words
A LUBRICANT COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A POLYPHENYL THIOETHER HAVING THE FORMULA

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) 1977-10-21 1978-04-22 1978-10-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-21 1982-04-22 1982-10-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-21 1986-04-22 1986-10-22 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag