Patent US3664816A successfully refreshed from Google Patents.
US3664816A
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Steel-to-aluminum transition piece
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1969-06-16
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Granted: 1972-05-23
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Expires: 1989-06-16
Abstract
Abstract A TRANSITION INSERT PIECE SUITABLE FOR THE FUSION WELDING OF ALUMINUM TO STEEL COMPRISING A STEEL ELEMENT AND A STRONG ALUMINUM ALLOY ELEMENT PRESSURE BONDED TOGETHER THROUGH A HIGHLY DEFORMABLE ALUMINUM BONDING LAYER.
Inventors
- 👤 Walter D Finnegan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:36
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/23; B23K9/232; B23K20/00; B23K20/04; B23K35/00; B23K35/001; B23K35/002; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/12764; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12972; Y10T428/12979
Claims Analysis
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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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |