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US3089780A
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Method and composition for shielding steel from molten coating metal
Assignee: United States Steel Corp
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Filing: 1961-05-04
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Granted: 1963-05-14
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Expires: 1981-05-04
Abstract
No abstract record available.
Inventors
- 👤 James C Siple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:10
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/224; C; C23; C23C; C23C2/00; C23C2/02; C23C2/022
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
A METHOD OF SHIELDING STEEL FROM COATING BY METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, ZINC, TIN AND TERNE, WHEN IMMERSED IN A MOLTEN BATH THEREOF, WHICH COMPRISES APPLYING TO THE SURFACE OF THE STEEL A WATER SLURRY CONSISTING ESSENTIALLY OF FROM 12 TO 28% BY WEIGHT OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF CALCIUM OXIDE AND MAGNESIUM OXIDE, AND FROM 3 TO 20% SODIUM METABORATE BY WEIGHT AND DRYING THE RESULTING, FILM, THEN IMMERSING THE STEEL IN THE BATH.
References Cited (Backward Citations)
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US2502198A
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US2618530A
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US2858235A
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Cited
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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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |