Patent US3108912A successfully refreshed from Google Patents.
US3108912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic material
Assignee: General Electric Co
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Filing: 1960-10-05
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Granted: 1963-10-29
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Expires: 1980-10-05
Abstract
No abstract record available.
Inventors
- 👤 Peter G Frischmann
- 👤 John L Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:29
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/14766; H01F1/14775; C; C21; C21D; C21D8/00; C21D8/12; C21D8/1244; C21D8/1272; C21D8/1216; C21D8/1222; C21D8/1261
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN ARTICLE OF MANUFACTURE COMPRISING, A HIGH-PURITY ALLOY BODY HAVING A MAJORITY OF ITS CONSTITUENT GRAINS ORIENTED IN THE (100)(001) CRYSTALLINE ORIENTATION AND CONSISTING OF FROM ABOUT 4 TO 6 WEIGHT PERCENT SILICON, REMAINDER SUBSTANTIALLY ALL IRON, AND CONTAINING NOT MORE THAN ABOUT 0.010 WEIGHT PERCENT INCIDENTAL IMPURITIES, SAID BODY HAVING SUBSTANTIALLY CONSTANT MAGNETIC PERMEABILITY WHEN SUBJECTED TO APPLIED MAGNETIC FIELDS OF FROM ABOUT 0.1 OERSTED TO FIELDS WHEREIN INDUCTION APPROACHES SATURATION.
Claim 2
Dependent Claim
72 words
AN ARTICLE OF MANUFACTURE COMPRISING, A HIGH-PURITY ALLOY BODY HAVING A MAJORITY OF ITS CONSTITUENT GRAINS ORIENTED IN THE (100)(001) CRYSTALLINE ORIENTATION AND CONSISTING OF FROM ABOUT 4 TO 6 WEIGHT PERCENT SILICON, REMAINDER SUBSTANTIALLY ALL IRON, AND CONTAINING NOT MORE THAN ABOUT 0.010 WEIGHT PERCENT INCIDENTAL IMPURITIES, SAID BODY HAVING SUBSTANTIALLY CONSTANT MAGNETIC PERMEABILITY WHEN SUBJECTED TO APPLIED MAGNETIC FIELDS OF FROM ABOUT 0.1 OERSTED TO FIELDS WHEREIN INDUCTION APPROACHES SATURATION.
References Cited (Backward Citations)
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Cited
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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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |