US2692859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-working lubricant
Assignee: Shell Development Co
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Filing: 1951-07-18
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Granted: 1954-10-26
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Expires: 1971-07-18
Abstract
No abstract record available.
Inventors
- 👤 Samuel K Talley
- 👤 Stewart J Beaubien
- 👤 Leonard P Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:55
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/02; B21B45/0239; B21B45/0242; C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/085; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2207/00; C10M2207/08; C10M2207/10; C10M2207/16; C10M2207/20; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2209/108; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/06; C10M2215/064; C10M2215/10; C10M2215/102; C10M2215/20; C10M2215/202; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/04; C10M2219/044; C10M2221/00; C10M2221/04; C10M2221/043; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/02; C10N2010/04; 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
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
A METAL WORKING LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT OF WATER AND MINOR AMOUNT OF FROM 0.01 TO 10% EACH OF ALKYL PHENOL-ETHYLENE OXIDE REACTION PRODUCT, A NITRITE SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL NITRITE AND AN ORGANIC NITROGEN BASE NITRITE AND A INORGANIC ALKALI METAL PHOSPHATE.
References Cited (Backward Citations)
GB644029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |