US3123808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic storage device
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:05
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069; Y10T29/49117
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
IN COMBINATION WITH A MAGNETIC DEVICE COMPRISING A MEMBER MADE OF LOW RESISTIVITY METALLIC MAGNETIC MATERIAL OF GIVEN CONDUCTIVITY CAPABLE OF ATTAINING BISTABLE STATES OF RESIDUAL FLUX DENSITY, MEANS INDUCTIVELY ASSOCIATED WITH SAID MEMBER FOR INDUCING A FLUX CHANGE THEREIN, AND A PAIR OF ELECTRODE PROBE MEANS IN OHMIC CONTACT WITH SAID MEMBER EXHIBITING A HIGH CONDUCTIVITY RELATIVE TO THE GIVEN CONDUCTIVITY OF SAID MEMBER FOR SENSING FLUX CHANGES IN SAID MEMBER.
Claim 2
Dependent Claim
72 words
IN COMBINATION WITH A MAGNETIC DEVICE COMPRISING A MEMBER MADE OF LOW RESISTIVITY METALLIC MAGNETIC MATERIAL OF GIVEN CONDUCTIVITY CAPABLE OF ATTAINING BISTABLE STATES OF RESIDUAL FLUX DENSITY, MEANS INDUCTIVELY ASSOCIATED WITH SAID MEMBER FOR INDUCING A FLUX CHANGE THEREIN, AND A PAIR OF ELECTRODE PROBE MEANS IN OHMIC CONTACT WITH SAID MEMBER EXHIBITING A HIGH CONDUCTIVITY RELATIVE TO THE GIVEN CONDUCTIVITY OF SAID MEMBER FOR SENSING FLUX CHANGES IN SAID MEMBER.
References Cited (Backward Citations)
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Cited
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Cited
US2890441A
Cited
US2942240A
Cited
US2987707A
Cited
US2900451A
Cited
US2863712A
Cited
US2882519A
Cited
US3030612A
Cited
US3083353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |