Patent US1998122A successfully refreshed from Google Patents.
US3166408A
Expired / Lapsed
US
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Magnetic alloys
Assignee: Westinghouse Electric Corp
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Filing: 1961-11-16
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Granted: 1965-01-19
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Expires: 1981-11-16
Abstract
No abstract record available.
Inventors
- 👤 Charles W Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:59
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; C; C22; C22C; C22C19/00; C22C19/07; C22C38/00; C22C38/10; C22C38/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A MAGNETICALLY SOFT ALLOY OF HIGH PURITY CONSISTING OF, BY WEIGHT, FROM 3.2% TO 10% MANGANESE, FROM 35% TO 60% COBALT, AND THE BALANCE AT LEAST 35% IRON AND SMALL AMOUNTS OF INCIDENTAL IMPURITIES, INCLUDING DETRIMENTAL IMPURITIES NOT EXCEEDING 200 PARTS PER MILLION.
Claim 2
Dependent Claim
43 words
A MAGNETICALLY SOFT ALLOY OF HIGH PURITY CONSISTING OF, BY WEIGHT, FROM 3.2% TO 10% MANGANESE, FROM 35% TO 60% COBALT, AND THE BALANCE AT LEAST 35% IRON AND SMALL AMOUNTS OF INCIDENTAL IMPURITIES, INCLUDING DETRIMENTAL IMPURITIES NOT EXCEEDING 200 PARTS PER MILLION.
References Cited (Backward Citations)
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US1715648A
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US1927940A
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US1862559A
Cited
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Cited
US3024141A
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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) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |