Patent US2662836A successfully refreshed from Google Patents.
US2662836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparing metal surfaces for drawing operations
Assignee: Montgomery H A Co
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Filing: 1950-01-06
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Granted: 1953-12-15
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Expires: 1970-01-06
Abstract
No abstract record available.
Inventors
- 👤 Harley A Montgomery
- 👤 Wesley J Wojtowicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:24
CPC Classifications
C; C10; C10M; C10M173/00; C10M2201/00; C10M2201/02; C10M2205/00; C10M2205/18; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/20; C10M2207/40; C10M2207/404; C10N; C10N2010/00; C10N2010/02; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE PROCESS OF PREPARING FERROUS METALS FOR DRAWING OPERATIONS WHEN SAID METALS HAVE BEEN PREVIOUSLY TREATED TO PRODUCE THEREON RELATIVELY POROUS INTEGRALLY FORMED SURFACES OF A CRYSTALLINE FERROUS METAL COMPLEX, SAID PROCESS COMPRISING APPLYING TO SAID SURFACES A DRAWING COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF WATERSOLUBLE ALKALI METAL SOAP AND WATER-INSOLUBLE ALCOHOL, SAID SOAP COMPRISING BY WEIGHT FROM ABOUT 50% TO ABOUT 75% OF SAID MIXTURE AND AT LEAST THE MAJOR PROPORTION OF SAID SOAP BEING SOAP OF FATTY ACIDS HAVING AT LEAST 10 CARBON ATOMS, AND SAID ALCOHOL COMPRISING FROM ABOUT 50% TO ABOUT 25% OF SAID MIXTURE BY WEIGHT AND HAVING A DEGREE OF HYDROPHOBICITY AT LEAST AS GREAT AS A 10 CARBON ATOM MONOHYDRIC ALIPHATIC ALCOHOL, SAID MIXTURE BEING APPLIED IN THE FORM OF AN EMULSION IN WATER.
Claim 2
Dependent Claim
132 words
THE PROCESS OF PREPARING FERROUS METALS FOR DRAWING OPERATIONS WHEN SAID METALS HAVE BEEN PREVIOUSLY TREATED TO PRODUCE THEREON RELATIVELY POROUS INTEGRALLY FORMED SURFACES OF A CRYSTALLINE FERROUS METAL COMPLEX, SAID PROCESS COMPRISING APPLYING TO SAID SURFACES A DRAWING COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF WATERSOLUBLE ALKALI METAL SOAP AND WATER-INSOLUBLE ALCOHOL, SAID SOAP COMPRISING BY WEIGHT FROM ABOUT 50% TO ABOUT 75% OF SAID MIXTURE AND AT LEAST THE MAJOR PROPORTION OF SAID SOAP BEING SOAP OF FATTY ACIDS HAVING AT LEAST 10 CARBON ATOMS, AND SAID ALCOHOL COMPRISING FROM ABOUT 50% TO ABOUT 25% OF SAID MIXTURE BY WEIGHT AND HAVING A DEGREE OF HYDROPHOBICITY AT LEAST AS GREAT AS A 10 CARBON ATOM MONOHYDRIC ALIPHATIC ALCOHOL, SAID MIXTURE BEING APPLIED IN THE FORM OF AN EMULSION IN WATER.
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) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |