Patent US3050465A successfully refreshed from Google Patents.
US3050465A
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Water-in-oil emulsion hydraulic fluids
Assignee: Shell USA Inc
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Filing: 1959-05-04
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Granted: 1962-08-21
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Expires: 1979-05-04
Abstract
No abstract record available.
Inventors
- 👤 Charles E Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:05
CPC Classifications
C; C10; C10M; C10M173/00; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/083; C10M2201/084; C10M2201/085; C10M2201/086; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/14; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/027; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/287; C10M2207/288; C10M2207/289; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/086; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/107; C10M2209/108; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/067; C10M2215/068; C10M2215/08; C10M2215/082; C10M2215/10; C10M2215/24; C10M2215/26; C10M2215/28; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2219/108; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/08; C10N2040/00; C10N2040/08; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/01; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A HYDRAULIC FLUID FOR COLLIERY EQUIPMENT CONSISTING ESSENTIALLY OF A WATER-IN-OIL EMULSION IN WHICH THE WATER PHASE IS FROM ABOUT 20% TO ABOUT 45% OF THE EMULSION AND THE OIL PHASE IS FROM ABOUT 55% TO ABOUT 80% OF THE EMULSION, THE OIL PHASE BEING ESSENTIAL AN 80-100 V.I. MINERAL OIL HAVING A VISCOSITY IN THE RANGE OF FROM 75 TO 250 SUS AT 100* F, CONTAINING FROM ABOUT 1% TO ABOUT 4% OF A MONOESTER OF A LONG CHAIN FATTY ACID HAVING FROM 8 TO 18 CARBON ATOMS AND AN ALKITAN SELECTED FROM THE GROUP CONSISTING OF SORBITAN AND MANNITAN AND FROM ABOUT 0.5% TO ABOUT 3% OF AN OIL-SOLUBLE C4-20 ALKYL PHENOXY(ETHOXY)4-6 ETHANOL BASED ON THE OIL
Claim 2
Dependent Claim
119 words
A HYDRAULIC FLUID FOR COLLIERY EQUIPMENT CONSISTING ESSENTIALLY OF A WATER-IN-OIL EMULSION IN WHICH THE WATER PHASE IS FROM ABOUT 20% TO ABOUT 45% OF THE EMULSION AND THE OIL PHASE IS FROM ABOUT 55% TO ABOUT 80% OF THE EMULSION, THE OIL PHASE BEING ESSENTIAL AN 80-100 V.I. MINERAL OIL HAVING A VISCOSITY IN THE RANGE OF FROM 75 TO 250 SUS AT 100* F, CONTAINING FROM ABOUT 1% TO ABOUT 4% OF A MONOESTER OF A LONG CHAIN FATTY ACID HAVING FROM 8 TO 18 CARBON ATOMS AND AN ALKITAN SELECTED FROM THE GROUP CONSISTING OF SORBITAN AND MANNITAN AND FROM ABOUT 0.5% TO ABOUT 3% OF AN OIL-SOLUBLE C4-20 ALKYL PHENOXY(ETHOXY)4-6 ETHANOL BASED ON THE OIL
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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) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |