Patent US2865085A successfully refreshed from Google Patents.
US2865085A
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Preparation of magnetic materials and magnetic members
Assignee: Westinghouse Electric Corp
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Filing: 1954-07-30
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Granted: 1958-12-23
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Expires: 1974-07-30
Abstract
No abstract record available.
Inventors
- 👤 Albert J Cornish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:51
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/04; H01F1/06; C; C22; C22C; C22C28/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN THE PROCESS OF PREPARING A MAGNETIC MATERIAL FROM BISMITH AND MANGESIUM THE STEPS COMPRISING INITIMATELY ADMIXING POWDERED BISMUTH AMD NAGNANISUM IN EQUIMOLECUAR PROPORATIONS TJE POWDERED BISMUTH AND MANGANESE COMPRISING PARTICLES, OF EACH AVERAGE DIAMETER OF NOY OVER 10 MICRONS THE PARTICLES OF EACH MATRIAL BEING COATED OR SMARED WITH THE OTHER MATERIAL AND HEATING THE ADMIXED POWDERS WHILE IN AN UNPRESSED CONDITON IN AN INERT ATMOSPHERE T A TEMPERATURE JUST BELOW THE MELTING POINT OD BISMUTH BUT NOT LESS THAN BELOW FOR A PERIOD OD TIME WHEREBY A PRODUCT COMPRISING SUBSTANTIALLY ALL HIGHLY MAGNETIC MNBI LLOY IN A READILY POWDERED FORM IS PRODUCED.
Claim 2
Dependent Claim
104 words
IN THE PROCESS OF PREPARING A MAGNETIC MATERIAL FROM BISMITH AND MANGESIUM THE STEPS COMPRISING INITIMATELY ADMIXING POWDERED BISMUTH AMD NAGNANISUM IN EQUIMOLECUAR PROPORATIONS TJE POWDERED BISMUTH AND MANGANESE COMPRISING PARTICLES, OF EACH AVERAGE DIAMETER OF NOY OVER 10 MICRONS THE PARTICLES OF EACH MATRIAL BEING COATED OR SMARED WITH THE OTHER MATERIAL AND HEATING THE ADMIXED POWDERS WHILE IN AN UNPRESSED CONDITON IN AN INERT ATMOSPHERE T A TEMPERATURE JUST BELOW THE MELTING POINT OD BISMUTH BUT NOT LESS THAN BELOW FOR A PERIOD OD TIME WHEREBY A PRODUCT COMPRISING SUBSTANTIALLY ALL HIGHLY MAGNETIC MNBI LLOY IN A READILY POWDERED FORM IS PRODUCED.
References Cited (Backward Citations)
US2576679A
Cited
US2329698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |