US3079639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for preparing magnetic cores
Assignee: RCA Corp
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Filing: 1960-11-30
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Granted: 1963-03-05
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Expires: 1980-11-30
Abstract
No abstract record available.
Inventors
- 👤 Gordon Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:41
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2683; C04B35/2608; C04B35/2633; Y; Y10; Y10S; Y10S264/00; Y10S264/58; Y10S425/00; Y10S425/033; Y10S428/00; Y10S428/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A METHOD FOR PREPARING A MAGNETIC CORE, THE STEPS COMPRISING PROVIDING MAGNETIC PARTICLES HAVING A PLANE OF EASY MAGNETIZATION, PLACING A QUANTITY OF SAID PARTICLES IN A NON-MAGNETIC MOLD HAVING AN AXIS OF ROTATION WHICH PASSES THROUGH SAID QUANTITY OF PARTICLES, ROTATING SAID MOLD AROUND SAID AXIS OF ROTATION, AND SIMULTANEOUSLY APPLYING A SUBSTANTIALLY UNIDIRECTIONAL MAGNETIC FIELD THROUGH SAID QUANTITY OF PARTICLES IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO SAID AXIS OF ROTATION.
Claim 2
Dependent Claim
73 words
IN A METHOD FOR PREPARING A MAGNETIC CORE, THE STEPS COMPRISING PROVIDING MAGNETIC PARTICLES HAVING A PLANE OF EASY MAGNETIZATION, PLACING A QUANTITY OF SAID PARTICLES IN A NON-MAGNETIC MOLD HAVING AN AXIS OF ROTATION WHICH PASSES THROUGH SAID QUANTITY OF PARTICLES, ROTATING SAID MOLD AROUND SAID AXIS OF ROTATION, AND SIMULTANEOUSLY APPLYING A SUBSTANTIALLY UNIDIRECTIONAL MAGNETIC FIELD THROUGH SAID QUANTITY OF PARTICLES IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO SAID AXIS OF ROTATION.
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |