Patent US3140942A successfully refreshed from Google Patents.
US3140942A
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Ferromagnetic compositions of iron, rhodium and at least one other element of atomicnumbers 21-25 and 27-30
Assignee: EIDP Inc
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Filing: 1962-03-05
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Granted: 1964-07-14
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Paul H L Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:07
CPC Classifications
B; B82; B82Y; B82Y25/00; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/0302; H01F1/0306; C; C22; C22C; C22C5/00; C22C5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
AN ALLOY IN WHICH (A) IRON, (B) RHODIUM, AND (C) AT LEAST ONE TRANSITION ELEMENT OF ATOMIC NUMBER 2125 AND 27-30 ARE PRESENT IN THE ATOM PROPORTIONS 0.8 TO 1.2 OF (A), 0.8 TO 1.2 OF (B), AND 0.4 TO 0.01 OF (C).
Claim 2
Dependent Claim
43 words
AN ALLOY IN WHICH (A) IRON, (B) RHODIUM, AND (C) AT LEAST ONE TRANSITION ELEMENT OF ATOMIC NUMBER 2125 AND 27-30 ARE PRESENT IN THE ATOM PROPORTIONS 0.8 TO 1.2 OF (A), 0.8 TO 1.2 OF (B), AND 0.4 TO 0.01 OF (C).
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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |