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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
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Abstract

No abstract record available.

Inventors

  • 👤 Walter Scott Blume Jr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 19:39
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

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