Patent US3843971A successfully refreshed from Google Patents.
Patent US3206734A successfully refreshed from Google Patents.
US3206734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Memory systems having flux logic memory elements
Assignee: RCA Corp
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Filing: 1961-02-28
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Granted: 1965-09-14
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Expires: 1981-02-28
Abstract
No abstract record available.
Inventors
- 👤 George R Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:16
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G11; G11C; G11C11/00; G11C11/02; G11C11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
A PLANAR MEMORY STRUCTURE COMPRISING A DIGIT PLANE SHEET OF MAGNETIC MATERIAL CUT AWAY IN A PATTERN DEFINING A PLURALITY OF TRANSFLUXOR MEMORY ELEMENTS EACH HAVING A FIRST APERTURE NEAR A FIRST EDGE, A SECOND LARGER APERTURE NEAR A SECOND OPPOSITE EDGE, AND A THIRD CENTRAL APERTURE, SAID ELEMENTS BEING SYSTEMATICALLY ARRANGED IN Y SELECTION COLUMNS AND X SELECTION ROWS WITH THE FIRST EDGES OF ADJACENT ELEMENTS NEAR EACH OTHER AND THE SECOND OPPOSITE EDGES OF ADJACENT ELEMENTS NEAR OTHER, PRINTED Y SELECTION READ AND WRITE WINDINGS ON SAID SHEET FOR EACH Y SELECTION COLUMN OF ELEMENTS, EACH Y SELECTION READ WINDING EXTENDING THROUGH THE FIRST APERTURES OF ALL ELEMENTS IN A COLUMM AND EACH Y SELECTION WRITE WINDING EXTENDING THROUGH THE THIRD CENTRAL APERTURES OF ALL ELEMENTS IN A COLUMN, PRINTED X SELECTION READ AND WRITE WINDINGS ON SAID SHEET FOR EACH X SELECTION ROW OF ELEMENTS, EACH X SELECTION READ WINDING EXTENDING THROUGH THE FIRST APERTURES OF ALL ELEMENTS IN A ROW AND EACH X SELECTION WRITE WINDING EXTENDING THROUGH THE THIRD CENTRAL APERTURES OF ALL ELEMENTS IN A ROW, A PRINTED SENSE WINDING EXTENDING THROUGH THE SECOND APERTURES OF ALL THE MEMORY ELEMENTS OF SAID SHEET, AND PRINTED INHIBIT AND BIAS WINDING MEANS EXTENDING THROUGH SAID FIRST AND THIRD CENTRAL APERTURES OF ALL THE MEMORY ELEMENTS OF SAID SHEET.
Claim 2
Dependent Claim
222 words
A PLANAR MEMORY STRUCTURE COMPRISING A DIGIT PLANE SHEET OF MAGNETIC MATERIAL CUT AWAY IN A PATTERN DEFINING A PLURALITY OF TRANSFLUXOR MEMORY ELEMENTS EACH HAVING A FIRST APERTURE NEAR A FIRST EDGE, A SECOND LARGER APERTURE NEAR A SECOND OPPOSITE EDGE, AND A THIRD CENTRAL APERTURE, SAID ELEMENTS BEING SYSTEMATICALLY ARRANGED IN Y SELECTION COLUMNS AND X SELECTION ROWS WITH THE FIRST EDGES OF ADJACENT ELEMENTS NEAR EACH OTHER AND THE SECOND OPPOSITE EDGES OF ADJACENT ELEMENTS NEAR OTHER, PRINTED Y SELECTION READ AND WRITE WINDINGS ON SAID SHEET FOR EACH Y SELECTION COLUMN OF ELEMENTS, EACH Y SELECTION READ WINDING EXTENDING THROUGH THE FIRST APERTURES OF ALL ELEMENTS IN A COLUMM AND EACH Y SELECTION WRITE WINDING EXTENDING THROUGH THE THIRD CENTRAL APERTURES OF ALL ELEMENTS IN A COLUMN, PRINTED X SELECTION READ AND WRITE WINDINGS ON SAID SHEET FOR EACH X SELECTION ROW OF ELEMENTS, EACH X SELECTION READ WINDING EXTENDING THROUGH THE FIRST APERTURES OF ALL ELEMENTS IN A ROW AND EACH X SELECTION WRITE WINDING EXTENDING THROUGH THE THIRD CENTRAL APERTURES OF ALL ELEMENTS IN A ROW, A PRINTED SENSE WINDING EXTENDING THROUGH THE SECOND APERTURES OF ALL THE MEMORY ELEMENTS OF SAID SHEET, AND PRINTED INHIBIT AND BIAS WINDING MEANS EXTENDING THROUGH SAID FIRST AND THIRD CENTRAL APERTURES OF ALL THE MEMORY ELEMENTS OF SAID SHEET.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |