US3112232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quenching composition
Assignee: Shell USA Inc
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Filing: 1960-10-24
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Granted: 1963-11-26
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Expires: 1980-10-24
Abstract
No abstract record available.
Inventors
- 👤 Curtis L Early
- 👤 Rozalsky Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:15
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07D; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/12; C07D233/14; C21; C21D; C21D1/00; C21D1/56; C21D1/58; C10M2203/00; C10M2203/10; C10M2203/104; C10M2203/106; C10M2203/108; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/223; C10M2215/224; C10M2215/24; C10M2215/28; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2217/028; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2040/00; C10N2040/20; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A PROCESS FOR HEAT TREATING STEEL COMPRISING HEATING THE METAL TO A QUENCH HARDENING TEMPERATURE AND THEREAFTER QUENCHING THE METAL BY IMMERSION IN AN OIL BLEND CONTAINING FROM 0.1% TO 2% OF AN OIL-SOLUBE N-C10**24 ACYL SARCOSINE, SAID OIL BLEND CONSISTIING OF A PREDOMINANT AMOUNT OF A HIGH VISCOSITY INDEX MINERAL OIL HAVING A VISCOSITY INDEX OF FROM 90 TO 120, AND AN AROMATIC CONTENT OF FROM 20 TO 60% AND THE BALANCE OF THE BLEND BEING SELECTED FROM THE GROUP CONSISTING OF A LIGHT MINERAL OIL HAVING A VISCOSITY RANGE OF FROM 40 TO 100 SUS AT 100* F., A HEAVY RESIDUE FRACTION AND MIXTURES THEREOF.
Claim 2
Dependent Claim
107 words
A PROCESS FOR HEAT TREATING STEEL COMPRISING HEATING THE METAL TO A QUENCH HARDENING TEMPERATURE AND THEREAFTER QUENCHING THE METAL BY IMMERSION IN AN OIL BLEND CONTAINING FROM 0.1% TO 2% OF AN OIL-SOLUBE N-C10**24 ACYL SARCOSINE, SAID OIL BLEND CONSISTIING OF A PREDOMINANT AMOUNT OF A HIGH VISCOSITY INDEX MINERAL OIL HAVING A VISCOSITY INDEX OF FROM 90 TO 120, AND AN AROMATIC CONTENT OF FROM 20 TO 60% AND THE BALANCE OF THE BLEND BEING SELECTED FROM THE GROUP CONSISTING OF A LIGHT MINERAL OIL HAVING A VISCOSITY RANGE OF FROM 40 TO 100 SUS AT 100* F., A HEAVY RESIDUE FRACTION AND MIXTURES THEREOF.
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) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |