US3211651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions containing polyether derivatives
Assignee: Castrol Ltd
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Filing: 1961-12-11
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Granted: 1965-10-12
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Expires: 1981-12-11
Abstract
No abstract record available.
Inventors
- 👤 Elliott John Scotchford
- 👤 Edwards Eric Descamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:51
CPC Classifications
C; C10; C10M; C10M151/00; C10M151/04; C07; C07C; C07C323/00; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/74; C07F; C07F7/00; C07F7/28; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C10M135/00; C10M135/12; C10M135/32; C10M135/36; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C10M137/12; C10M137/14; C10M2203/00; C10M2203/10; C10M2203/108; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/128; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/107; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/222; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2221/04; C10M2221/043; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/047; C10M2223/06; C10M2223/061; C10M2223/065; C10M2225/00; C10M2225/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR PROORTION OF AN OIL SELECTED FROM THE GROUP CONSISTING OF A MINERAL AND A SYNTHETIC LUBRICATING OIL HAVING DISSOLVED THEREIN FROM 0.1 TO 20% BY WEIGHT OF THE REACTION PRODUCE (1) A HALOGENATED DERIVATIVE OF A POLYETHER CONTAINING BRANCHED CHAIN ALKYLENE GROUPS OF 3-4 CARBON ATOMS WHERE THE HALOGEN IS PRESENT FROM ABOUT 10 TO 56 PERCENT BY WEIGHT AND IS BONDED TO THE SECONDARY CARBON ATOM OF SAID ALKYLENE GROUPS AND IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE AND (2) A GROUP I METAL SALT OF AN ANION SELECTED FROM THE GROUP CONSISTING OF SULPHIDES CONTAINING UP TO FOUR SULPHUR ATOMS, XANTHYL, DITHIOCARBAMYL, DITHIOPHOSPHATE AND BENZTHIAZOLYTHIO WHEREBY A MAJOR PORTION OF SAID HALOGEN ATOMS ARE REPLACED BY SAID ANION, SAID ANION BEING BONDED TO THE SECONDARY CARBON ATOM OF SAID ALKYLENE GROUPS BY THE SULPHUR ATOM THEREOF AND SAID REACTION PRODUCT CONTAINING AT LEAST 5% BY WEIGHT OF SULPHUR.
Claim 2
Dependent Claim
161 words
A LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR PROORTION OF AN OIL SELECTED FROM THE GROUP CONSISTING OF A MINERAL AND A SYNTHETIC LUBRICATING OIL HAVING DISSOLVED THEREIN FROM 0.1 TO 20% BY WEIGHT OF THE REACTION PRODUCE (1) A HALOGENATED DERIVATIVE OF A POLYETHER CONTAINING BRANCHED CHAIN ALKYLENE GROUPS OF 3-4 CARBON ATOMS WHERE THE HALOGEN IS PRESENT FROM ABOUT 10 TO 56 PERCENT BY WEIGHT AND IS BONDED TO THE SECONDARY CARBON ATOM OF SAID ALKYLENE GROUPS AND IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE AND (2) A GROUP I METAL SALT OF AN ANION SELECTED FROM THE GROUP CONSISTING OF SULPHIDES CONTAINING UP TO FOUR SULPHUR ATOMS, XANTHYL, DITHIOCARBAMYL, DITHIOPHOSPHATE AND BENZTHIAZOLYTHIO WHEREBY A MAJOR PORTION OF SAID HALOGEN ATOMS ARE REPLACED BY SAID ANION, SAID ANION BEING BONDED TO THE SECONDARY CARBON ATOM OF SAID ALKYLENE GROUPS BY THE SULPHUR ATOM THEREOF AND SAID REACTION PRODUCT CONTAINING AT LEAST 5% BY WEIGHT OF SULPHUR.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |