Patent US2371445A successfully refreshed from Google Patents.
US2982019A
Expired / Lapsed
US
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Method of protecting magnesium with a coating of titanium or zirconium
Assignee: Union Carbide Corp
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Filing: 1955-08-15
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Granted: 1961-05-02
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Expires: 1975-08-15
Abstract
No abstract record available.
Inventors
- 👤 Folsom E Drummond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:40
CPC Classifications
G; G01; G01L; G01L15/00; B; B23; B23K; B23K20/00; B23K20/16; B23K35/00; B23K35/001; B23K35/002; B23K2103/00; B23K2103/16; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/937; Y10S428/938; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF PROTECTING MAGNESIUM METAL SURFACES AGAINST CORROSION, WHICH COMPRISES APPLYING ON SAID MAGNESIUM METAL MOLTEN METAL SELECTED FROM THE GROUP CONSISTING OF ZINC, CADMIUM AND ALLOYS THEREOF, APPLYING THEREOVER A SHEET OF METAL, SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM, HEATING THE RESULTANT SHEET MATERIAL TO A TEMPERATURE OF ABOUT 600-700*F. AND PASSING THE HEATED SHEET MATERIAL THROUGH ROLLS UNDER THE APPLICATION OF PRESSURE TO PRODUCE A COMPOSITE METAL BODY OF MAGNESIUM METAL HAVING A CORROSION RESISTANT OUTER SURFACE METAL LAYER.
Claim 2
Independent Claim
85 words
A METHOD OF PROTECTING MAGNESIUM METAL SURFACES AGAINST CORROSION, WHICH COMPRISES APPLYING ON SAID MAGNESIUM METAL MOLTEN METAL SELECTED FROM THE GROUP CONSISTING OF ZINC, CADMIUM AND ALLOYS THEREOF, APPLYING THEREOVER A SHEET OF METAL, SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM, HEATING THE RESULTANT SHEET MATERIAL TO A TEMPERATURE OF ABOUT 600-700*F. AND PASSING THE HEATED SHEET MATERIAL THROUGH ROLLS UNDER THE APPLICATION OF PRESSURE TO PRODUCE A COMPOSITE METAL BODY OF MAGNESIUM METAL HAVING A CORROSION RESISTANT OUTER SURFACE METAL LAYER.
References Cited (Backward Citations)
US1733813A
Cited
US1709781A
Cited
US2100258A
Cited
US2301332A
Cited
US2366168A
Cited
US2463010A
Cited
US2477279A
Cited
US2491284A
Cited
US2588421A
Cited
US2536673A
Cited
US2682702A
Cited
US2706153A
Cited
US2685124A
Cited
US2772985A
Cited
US2704727A
Cited
US2746888A
Cited
US2713196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |