US3563731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cobalt-base alloys containing chromium,carbon,tungsten and nickel
Assignee: Coast Metals Inc
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Filing: 1969-07-28
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Granted: 1971-02-16
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Expires: 1989-07-28
Abstract
Abstract A COBALT-BASE ALLOY CONTAINING CHROMIUM, CARBON, TUNGSTEN AND NICKEL IS PRODUCED, FOR USE IN JOINING HIGH TEMPERATURE ALLOYS. THE ALLOY HAS A RELATIVELY HIGH CARBON CONTENT AND A RELATIVELY LOW NICKEL CONTENT, SUCH THAT A SUBSTANTIAL INCREASE IN HARDNESS IS EFFECTED WITHOUT SACRIFICE IN TOUGHNESS AND DUCTILITY, AND A BETTER YIELD OF RODS IS OBTAINED WHEN THE ALLOY IS GROUND INTO WELD RODS.
Inventors
- 👤 Arthur T Cape
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:50
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3046
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |