US3574678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium welding electrode
Assignee: RMI Co
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Filing: 1969-03-07
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Granted: 1971-04-13
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Expires: 1989-03-07
Abstract
Abstract D R A W I N G TITANIUM ELECTRODE WHICH HAS A METAL COATING, PREFERABLY FORMED BY DIPPING THE ELECTRODE IN A MOLTEN ALUMINUM BATH. THIS COATING PREVENTS THE ELECTRODE FROM OXIDIZING DURING A WELDING OPERATION. THE ELECTRODE ALSO HAS AN ARC-STABILIZING COATING OF A HALIDE SALT. BY USE OF THIS ELECTRODE, TITANIUM BODIES CAN BE WELDED MANUALLY AND THE WELD REMAINS VISIBLE TO THE WELDER.
Inventors
- 👤 Louis E Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:09
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; B23K35/325; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12271; Y10T428/12389; Y10T428/12493; Y10T428/12535; Y10T428/12736; Y10T428/12743
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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |