US3597286A
Expired / Lapsed
US
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Method of treating a high strength high ductility iron-cobalt alloy
Assignee: Westinghouse Electric Corp
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Filing: 1968-02-23
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Granted: 1971-08-03
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Expires: 1988-02-23
Abstract
Abstract COLD ROLLED IRON-COBALT-VANADIUM SOFT MAGNETIC ALLOY TRIP IS ANNEALED UNDER CAREFULLY CONTROLLED CONDITIONS TO PRODUCE A PARTIALLY RECRYSTALLIZED GRAIN STRUCTURE; THE ALLOY STRIP THEN HAVING GOOD STRENGTH AND HIGH DUCTILITY COUPLED WITH GOOD MAGNETIC PROPERTIES AS EVIDENCED BY A MAGNETIC INDUCTION (B250) OF MORE THAN 22,000 GAUSS.
Inventors
- 👤 Donald R Thornburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 00:41
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/10; C21; C21D; C21D8/00; C21D8/12; C22C19/00; C22C19/07; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |