US3689232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jointing materials for steel and aluminum
Assignee: Asahi Kasei Corp
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Filing: 1971-07-09
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Granted: 1972-09-05
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Expires: 1991-07-09
Abstract
Abstract JOINING MATERIALS FOR STEEL WITH ALUMINUM WHICH DO NOT REQUIRE SO SEVERE CAREFULNESS IN JOINTING AND WITHSTAND A HIGHER TEMPERATURE CAN BE PRODUCED BY JOINTING LAYERS OF STEEL, TITANIUM AND ALUMINUM BY EXPLOSIVE WELDING AND THEY ARE USED BY PLACING BETWEEN TO-BE-JOINTED STEEL AND ALUMINUM AND WELDING THE ALUMINUM PART THEREOF WITH THE TO-BE-JOINTED ALUMINUM AND THE STEEL PART THEREOF WITH THE TO-BE-JOINTED STEEL.
Inventors
- 👤 Nobuyoshi Baba
- 👤 Makoto Adachi
- 👤 Hideo Nagata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:55
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/06; B23K20/08; B23K35/00; B23K35/001; B23K35/002; B32; B32B; B32B15/00; B32B15/01; B32B15/012; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12743; Y10T428/12764; Y10T428/12771; Y10T428/12806; Y10T428/12861; Y10T428/12951; Y10T428/12958; Y10T428/12965
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |