US2512358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic alloy
Assignee: Westinghouse Electric Corp
•
Filing: 1948-08-06
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Granted: 1950-06-20
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Expires: 1968-08-06
Abstract
No abstract record available.
Inventors
- 👤 Robert K Mcgeary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:05
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A MAGNETIC ALLOY COMPOSED OF 33% TO 37% COBALT, 1.9 TO 2.1% CHROMIUM,LESS THAN 0.01% CARBON, AND THE BALANCE SUBSTANTIALLY ALL IRON, WHICH HAS BEEN ANNEALED AT A TEMPERATURE OF BETWEEN 725*C. AND 775* IN AN ATMOSPHERE OF HYDROGEN.
Claim 2
Dependent Claim
39 words
A MAGNETIC ALLOY COMPOSED OF 33% TO 37% COBALT, 1.9 TO 2.1% CHROMIUM,LESS THAN 0.01% CARBON, AND THE BALANCE SUBSTANTIALLY ALL IRON, WHICH HAS BEEN ANNEALED AT A TEMPERATURE OF BETWEEN 725*C. AND 775* IN AN ATMOSPHERE OF HYDROGEN.
References Cited (Backward Citations)
US2442219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |