US2797995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferromagnetic non-ferrous alloys
Assignee: Canadian Patents and Development Ltd
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Filing: 1954-05-03
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Granted: 1957-07-02
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Expires: 1974-05-03
Abstract
No abstract record available.
Inventors
- 👤 Eric R Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:11
CPC Classifications
C; C22; C22C; C22C22/00; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A FERROMAGNETIC NON-FERROUS ALLOY IN WHICH THE FERROMAGNETIC PHASE HAS A CRYSTAL STRUCTURE WITH FACECENTERED SYMMETRY WITH MANGANESE AND SUBSTITUTIONAL METAL OCCUPYING CUBE-CORNER AND FACE-CENTER POSITIONS AND CARBON THE BODY-CENTER POSITION AND CONSISTING ESSENTIALLY OF NOT LESS THAN 60% BY WEIGHT OF MANGANESE 2.0 TO 5.5% CARBON AND THE BALANCE METAL BEING AT LEAST ONE OF A GROUP OF NON-TRANSITIONAL METALS, HAVING AN ATOMIC DIAMETER OF NOT LESS THAN 2.66 ANGSTROM UNITS AND MORE THAN ONE ELECTRON IN ITS VALENCE SHELL IN THE ELEMENTAL STATE.
Claim 2
Dependent Claim
85 words
A FERROMAGNETIC NON-FERROUS ALLOY IN WHICH THE FERROMAGNETIC PHASE HAS A CRYSTAL STRUCTURE WITH FACECENTERED SYMMETRY WITH MANGANESE AND SUBSTITUTIONAL METAL OCCUPYING CUBE-CORNER AND FACE-CENTER POSITIONS AND CARBON THE BODY-CENTER POSITION AND CONSISTING ESSENTIALLY OF NOT LESS THAN 60% BY WEIGHT OF MANGANESE 2.0 TO 5.5% CARBON AND THE BALANCE METAL BEING AT LEAST ONE OF A GROUP OF NON-TRANSITIONAL METALS, HAVING AN ATOMIC DIAMETER OF NOT LESS THAN 2.66 ANGSTROM UNITS AND MORE THAN ONE ELECTRON IN ITS VALENCE SHELL IN THE ELEMENTAL STATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |