US3371041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for modifying curie temperature of ferromagnetic lanthanide chalcogen solid solutions compounds
Assignee: International Business Machines Corp
•
Filing: 1964-06-11
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Granted: 1968-02-27
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Holtzberg Frederic
- 👤 Thomas R Mcguire
- 👤 Siegfried J Methessel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:35
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/40; C; C01; C01B; C01B19/00; C01B19/007; C01F; C01F17/00; C01F17/20; C01F17/206; C01F17/241; C01F17/288; C01F17/294; H01F1/03; H01F1/0302; H01F1/0311; H01F1/0313; C01P; C01P2004/00; C01P2004/51; C01P2004/52; C01P2006/00; C01P2006/42; H01F1/0009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A SOLID SOLUTION SYSTEM HAVING THE FORMULA
Claim 2
Dependent Claim
7 words
A SOLID SOLUTION SYSTEM HAVING THE FORMULA
References Cited (Backward Citations)
US3234494A
Cited
US3250722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |