Patent US3359152A successfully refreshed from Google Patents.
US3359152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machinable anisotropic magnet
Assignee: Leyman Corp
•
Filing: 1959-05-07
•
Granted: 1967-12-19
•
Expires: 1979-05-07
Abstract
No abstract record available.
Inventors
- 👤 Walter Scott Blume Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:38
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/10; H01F1/11; H01F1/113; Y; Y10; Y10S; Y10S428/00; Y10S428/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A PERMANENT MAGNET MATERIAL COMPRISING A LAMINATE OF SHEET FORMS EACH SHEET COMPRISING ROUGHLY PLATE-LIKE, SUBSTANTIALLY DOMAIN SIZE ANISOTROPIC PARTICLES OF AT LEAST ONE PERMANENT MAGNET SUBSTANCE SELECTED FROM THE CLASS CONSISTING OF THE FERRITES OF BARIUM, STRONTIUM AND LEAD, SAID PARTICLES INDIVIDUALLY HAVING SINGLE PREDOMINANTLY PREFERRED MAGNETIC AXES WHICH ARE CONSISTENTLY NORMAL TO THEIR RESPECTIVE GENERAL PLANES, SAID PARTICLES BEING ADHERED BY A PHYSICALLY COHERENT, NON-MAGNETIC BINDER SELECTED FROM THE CLASS CONSISTING OF RUBBERS, ELASTOMERS, AND RESIN, SAID PARTICLES BEING SO ORIENTED WITH RESPECT TO EACH OTHER AND TO SAID MATERIAL THAT THE PLANES OF SAID PLATE-LIKE PARTICLES ARE SUBSTANTIALLY PARALLEL TO EACH OTHER AND THE PREFERRED MAGNETIC AXES OF SAID PARTICLES ARE SUBSTANTIALLY PARALLEL TO EACH OTHER AND ARE SUBSTANTIALLY PERPENIDCULAR TO THE SURFACE OF SAID MATERIAL, SAID LAMINATE HAVING A PREFERRED DIRECTION OF MAGNETIZATION WHICH IS SUBSTANTIALLY NORMAL TO THE PLANES OF THE SHEET MATERIAL COMPRISING THE LAMINATE.
Claim 2
Dependent Claim
151 words
A PERMANENT MAGNET MATERIAL COMPRISING A LAMINATE OF SHEET FORMS EACH SHEET COMPRISING ROUGHLY PLATE-LIKE, SUBSTANTIALLY DOMAIN SIZE ANISOTROPIC PARTICLES OF AT LEAST ONE PERMANENT MAGNET SUBSTANCE SELECTED FROM THE CLASS CONSISTING OF THE FERRITES OF BARIUM, STRONTIUM AND LEAD, SAID PARTICLES INDIVIDUALLY HAVING SINGLE PREDOMINANTLY PREFERRED MAGNETIC AXES WHICH ARE CONSISTENTLY NORMAL TO THEIR RESPECTIVE GENERAL PLANES, SAID PARTICLES BEING ADHERED BY A PHYSICALLY COHERENT, NON-MAGNETIC BINDER SELECTED FROM THE CLASS CONSISTING OF RUBBERS, ELASTOMERS, AND RESIN, SAID PARTICLES BEING SO ORIENTED WITH RESPECT TO EACH OTHER AND TO SAID MATERIAL THAT THE PLANES OF SAID PLATE-LIKE PARTICLES ARE SUBSTANTIALLY PARALLEL TO EACH OTHER AND THE PREFERRED MAGNETIC AXES OF SAID PARTICLES ARE SUBSTANTIALLY PARALLEL TO EACH OTHER AND ARE SUBSTANTIALLY PERPENIDCULAR TO THE SURFACE OF SAID MATERIAL, SAID LAMINATE HAVING A PREFERRED DIRECTION OF MAGNETIZATION WHICH IS SUBSTANTIALLY NORMAL TO THE PLANES OF THE SHEET MATERIAL COMPRISING THE LAMINATE.
References Cited (Backward Citations)
US2589766A
Cited
US2566441A
Cited
US2655195A
Cited
GB746492A
Cited
US2825670A
Cited
GB758320A
Cited
US2837483A
Cited
US2959832A
Cited
US2999275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |