Patent US3586614A successfully refreshed from Google Patents.
US3586614A
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US
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Method of improving corrosion resistance of steel surfaces and resulting product
Assignee: United States Steel Corp
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Filing: 1968-05-31
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Granted: 1971-06-22
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Expires: 1988-05-31
Abstract
Abstract METHOD OF INCREASING CORROSION RESISTANCE OF STEEL SURFACE IN WHICH THE SURFACE IS COATED WITH ALUMINUM, AND A FILM OF MIXED OXIDES OF SILICON AND ALUMINUM IS DEPOSITED OVER THE ALUMINUM-COATED SURFACE.
Inventors
- 👤 William E Boggs
- 👤 Robert H Kachik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:16
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/0021; C23C28/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12583; Y10T428/1259; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |