US3067140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orientation of ferrites
Assignee: Raytheon Co
•
Filing: 1959-06-16
•
Granted: 1962-12-04
•
Expires: 1979-06-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Luther Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:49
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/10; H01F1/11; H01F1/113; H01F1/12; H01F1/14; H01F1/20; H01F1/22; H01F1/24; H01G; H01G7/00; H01G7/02; H01G7/028; C04B2235/00; C04B2235/70; C04B2235/74; C04B2235/78; C04B2235/787
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A CRYSTALLINE FERRITE MATERIAL COMPRISING A PLURALITY OF MINUTE PARTICLES SUSPENDED IN A NON-MAGNETIC MEDIUM AND HAVING A PLURALITY OF CRYSTALLOGRAPHIC EASY AXES, AT LEAST ONE OF SAID AXES LYING IN A PLANE OTHER THAN THAT FORMED BY AT LEAST TWO OTHER OF SAID AXES, HAVING MULTIDIMENSIONAL ALIGNMENT OF SAID CRYSTALLOGRAPHIC EASY AXES FORMED BY SUBJECTING SAID MINERAL TO A MAGNETIC FIELD SEQUENTLLY CHANGING THE DIRECTION OF SAID MAGNETIC FIELD WITH RESPECT TO SAID MINERAL TO ALIGN A SECOND OF SAID CRYSTALLOGRAPHIC EASY AXES OF THE PARTICLES COMPRISING SAID MATERIAL AND GRADUALLY RESTRAINING THE FREEDOM OF MOTION OF SAID MATERIAL WHILE SAID MAGNETIC FIELD IS BEING APPLIED TO SOLIDIFY SAID MATERIAL INTO A COMPACT MASS.
Claim 2
Dependent Claim
115 words
A CRYSTALLINE FERRITE MATERIAL COMPRISING A PLURALITY OF MINUTE PARTICLES SUSPENDED IN A NON-MAGNETIC MEDIUM AND HAVING A PLURALITY OF CRYSTALLOGRAPHIC EASY AXES, AT LEAST ONE OF SAID AXES LYING IN A PLANE OTHER THAN THAT FORMED BY AT LEAST TWO OTHER OF SAID AXES, HAVING MULTIDIMENSIONAL ALIGNMENT OF SAID CRYSTALLOGRAPHIC EASY AXES FORMED BY SUBJECTING SAID MINERAL TO A MAGNETIC FIELD SEQUENTLLY CHANGING THE DIRECTION OF SAID MAGNETIC FIELD WITH RESPECT TO SAID MINERAL TO ALIGN A SECOND OF SAID CRYSTALLOGRAPHIC EASY AXES OF THE PARTICLES COMPRISING SAID MATERIAL AND GRADUALLY RESTRAINING THE FREEDOM OF MOTION OF SAID MATERIAL WHILE SAID MAGNETIC FIELD IS BEING APPLIED TO SOLIDIFY SAID MATERIAL INTO A COMPACT MASS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |