US3065105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for producing magnetic material and resulting article
Assignee: Unisys Corp
•
Filing: 1958-06-12
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Granted: 1962-11-20
•
Expires: 1978-06-12
Abstract
No abstract record available.
Inventors
- 👤 Arthur V Pohm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:46
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/14; Y; Y10; Y10S; Y10S428/00; Y10S428/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN THE METHOD OF MAKING BISTABLE FERRO-MAGNETIC MATERIAL THE IMPROVEMENT COMPRISING SUBJECTING THE MATERIAL AS IT IS BEING FORMED TO A MAGNETIC FIELD WHICH CHANGES DIRECTION IN A NON-UNIFORM SPEED WHEREIN THE SUBJECTING OF THE MATERIAL TO A MAGNETIC FIELD INCLUDES SIMULTANEOUS SUBJECTION OF THE MATERIAL TO TWO ANGULATED CONTROLLED MAGNETIC FIELD COMPONENTS AT LEAST ONE OF EACH IS ALTERNATING AND WHEREIN THE OTHER COMPONENT IS ORIENTED ORTHOGONAL TO THE ALTERING FIELD COMPONENT.
Claim 2
Dependent Claim
73 words
IN THE METHOD OF MAKING BISTABLE FERRO-MAGNETIC MATERIAL THE IMPROVEMENT COMPRISING SUBJECTING THE MATERIAL AS IT IS BEING FORMED TO A MAGNETIC FIELD WHICH CHANGES DIRECTION IN A NON-UNIFORM SPEED WHEREIN THE SUBJECTING OF THE MATERIAL TO A MAGNETIC FIELD INCLUDES SIMULTANEOUS SUBJECTION OF THE MATERIAL TO TWO ANGULATED CONTROLLED MAGNETIC FIELD COMPONENTS AT LEAST ONE OF EACH IS ALTERNATING AND WHEREIN THE OTHER COMPONENT IS ORIENTED ORTHOGONAL TO THE ALTERING FIELD COMPONENT.
References Cited (Backward Citations)
US1658872A
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GB328057A
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GB572409A
Cited
GB670993A
Cited
US2694167A
Cited
US2765161A
Cited
FR1134869A
Cited
US2853402A
Cited
US2900282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |