US2562844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble metalworking lubricant
Assignee: Shell Development Co
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Filing: 1947-07-22
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Granted: 1951-07-31
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Expires: 1967-07-22
Abstract
No abstract record available.
Inventors
- 👤 Harman Denham
- 👤 Roy E Thorpe
- 👤 Samuel K Talley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:30
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2201/06; C10M2201/062; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/083; C10M2201/084; C10M2201/085; C10M2201/086; C10M2201/10; C10M2201/102; C10M2207/00; C10M2207/08; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/20; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/044; C10M2215/20; C10M2215/202; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2219/00; C10M2219/04; C10M2219/042; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/084; C10M2221/00; C10M2221/04; C10M2221/043; C10N; C10N2010/00; C10N2010/02; 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
44 words
A COOLING AND LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT OF AN AQUEOUS MEDIUM, A MINOR AMOUNT, SUFFICIENT TO IMPART EXTREME PRESSURE PROPERTIES TO THE COMPOSITION OF A BIS(HYDROXY ALKYL) SULFIDE AND A CORROSION INHIBITING AMOUNT OF A NITRITE SALT OF AN ORGANIC NITROGEN BASE.
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) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |