US2780598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal working and liquid coolants therefor
Assignee: Standard Oil Co
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Filing: 1954-03-30
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Granted: 1957-02-05
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Expires: 1974-03-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Cafcas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:30
CPC Classifications
C; C10; C10M; C10M173/00; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/086; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/20; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/109; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/26; C10M2215/28; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/064; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
5 . THE METHOD OF MINIMIZING THE QUANTITY OF SUSPENDED METAL PARTICLES IN A LIQUID COOLANT WHICH IS RECIRCULATED ONTO THE TOOL AND WORK PIECE DURING A METAL WORKING OPERATION, WHICH METHOD COMPRISES EMPLOYING A COOLANT COMPRISING ABOUT 5 TO 150 PARTS OF WATER PER PART OF AN EMULSIFIABLE OIL COMPRISING BETWEEN ABOUT 45 TO 95% OF HYDROCARBON OIL, BETWEEN ABOUT 2 TO 30% OF AN OIL-IN -WATER EMULSIFYING AGENT, AND BETWEEN ABOUT 0.05 TO 20% OF AT LEAST ONE ALKYLENE DIAMINE COMPOUND HAVING THE GENERAL 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) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |