US3177146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-resistant hydraulic fluids
Assignee: Shell USA Inc
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Filing: 1961-10-17
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Granted: 1965-04-06
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Expires: 1981-10-17
Abstract
No abstract record available.
Inventors
- 👤 Charles E Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:13
CPC Classifications
C; C10; C10M; C10M173/00; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/083; C10M2201/084; C10M2201/085; C10M2201/086; C10M2205/00; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/289; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/107; C10M2209/108; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/18; C10M2215/182; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/01; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A WATER-IN-OIL EMULSION LUBRICANT AND HYDRAULIC FLUID WHICH IS FROM ABOUT 20% TO ABOUT 45% WATER PHASE CONSITING ESSENTIALLY OF WATER AND FROM ABOUT 0.04% TO ABOUT 2% OF A WATER-SOLUBLE POLYMERIC COMPOUND HAVING A MOLECULAR WEIGHT IN THE RANGE FROM 1,000 TO 500,000 AND HAVING THE FORMULA
Claim 2
Dependent Claim
48 words
A WATER-IN-OIL EMULSION LUBRICANT AND HYDRAULIC FLUID WHICH IS FROM ABOUT 20% TO ABOUT 45% WATER PHASE CONSITING ESSENTIALLY OF WATER AND FROM ABOUT 0.04% TO ABOUT 2% OF A WATER-SOLUBLE POLYMERIC COMPOUND HAVING A MOLECULAR WEIGHT IN THE RANGE FROM 1,000 TO 500,000 AND HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |