US3398448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating steel with nickel
Assignee: Huntington Alloys Corp
•
Filing: 1966-09-12
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Granted: 1968-08-27
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Expires: 1986-09-12
Abstract
No abstract record available.
Inventors
- 👤 Charles B Goodrich
- 👤 Charles E Manilla
- 👤 Keith E Creager
- 👤 Harper J Rudge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:23
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/08; C23C24/082; C23C24/085; C23C24/087; B; B22; B22F; B22F7/00; B22F7/02; B22F7/04; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K35/00; B23K35/001; B23K35/004; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12069; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/1291; Y10T428/12917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
THE PROCESS FOR PRODUCING A METAL-COATED STEEL SHEET WHICH COMPRISES CLEANING A SUBSTANTIALLY FLAT FACE OF A STEEL PRIMARY MILL SHAPE, COPPER COATING SAID CLEANED STEEL FACE, APPLYING A LAYER OF POWDER CONTAINING AT LEAST ONE METAL HAVING A MELTING POINT AT LEAST ABOUT 2200*F. UPON SAID CLEANED AND COPPER-COATED STEEL FACE, COVERING SAID METAL POWDER LAYER WITH A METAL FOIL HAVING A COMPOSITION MATCHING THAT OF SAID METAL, HOT PRESSING SAID METAL POWDER LAYER UPON SAID STEEL FACE TO ACHIEVE SUBSTANTIAL DENSIFICATION OF SAID POWDER LAYER AND ADHERENCE OF SAID POWDER LAYER TO BOTH SAID FOIL AND SAID STEEL SHAPE, THEREAFTER HEATING SAID STEEL SHAPE TO A HOT ROLLING TEMPERATURE AND HOT ROLLING SAID METAL COATED STEEL SHAPED TO SHEET HAVING UPON A FACE THEREOF A SUBSTANTIALLY COMPLETELY DENSIFIED METAL COATING METALLURGICALLY BONDED TO A STEEL BASE.
Claim 2
Dependent Claim
138 words
THE PROCESS FOR PRODUCING A METAL-COATED STEEL SHEET WHICH COMPRISES CLEANING A SUBSTANTIALLY FLAT FACE OF A STEEL PRIMARY MILL SHAPE, COPPER COATING SAID CLEANED STEEL FACE, APPLYING A LAYER OF POWDER CONTAINING AT LEAST ONE METAL HAVING A MELTING POINT AT LEAST ABOUT 2200*F. UPON SAID CLEANED AND COPPER-COATED STEEL FACE, COVERING SAID METAL POWDER LAYER WITH A METAL FOIL HAVING A COMPOSITION MATCHING THAT OF SAID METAL, HOT PRESSING SAID METAL POWDER LAYER UPON SAID STEEL FACE TO ACHIEVE SUBSTANTIAL DENSIFICATION OF SAID POWDER LAYER AND ADHERENCE OF SAID POWDER LAYER TO BOTH SAID FOIL AND SAID STEEL SHAPE, THEREAFTER HEATING SAID STEEL SHAPE TO A HOT ROLLING TEMPERATURE AND HOT ROLLING SAID METAL COATED STEEL SHAPED TO SHEET HAVING UPON A FACE THEREOF A SUBSTANTIALLY COMPLETELY DENSIFIED METAL COATING METALLURGICALLY BONDED TO A STEEL BASE.
References Cited (Backward Citations)
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US2289311A
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US2372607A
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US3142560A
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US3316625A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |