Patent US3263221A successfully refreshed from Google Patents.
US3263221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic core matrix
Assignee: Thales Nederland BV
•
Filing: 1963-01-21
•
Granted: 1966-07-26
•
Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Hoek Evert Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:12
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN COMBINATION: A PLURALITY OF MAGNETIC STORAGE CORES CONSTITUTING A MATRIX HAVING AN UPPER SIDE AND A LOWER SIDE, A PLURALITY OF PERMANENT MAGNETS EACH OF WHICH CO-ACTS WITH A SELECTED CORE, EACH CO-ACTING PERMANENT MATRIX BEING LOCATED NEAR THE UPPER SIDE OF THE MATRIX WITH ONE POLE IN CLOSE PROXIMITY TO A SELECTED CORE, AT LEAST ONE SOFT MAGNETIC PLATE EXTENDING ALONG THE LOWER SIDE OF THE MATRIX, A PLURALITY OF SOFT MAGNETIC RODS, EACH ROD BEING LOCATED IN A SPACE IN THE MATRIX
Claim 2
Dependent Claim
85 words
IN COMBINATION: A PLURALITY OF MAGNETIC STORAGE CORES CONSTITUTING A MATRIX HAVING AN UPPER SIDE AND A LOWER SIDE, A PLURALITY OF PERMANENT MAGNETS EACH OF WHICH CO-ACTS WITH A SELECTED CORE, EACH CO-ACTING PERMANENT MATRIX BEING LOCATED NEAR THE UPPER SIDE OF THE MATRIX WITH ONE POLE IN CLOSE PROXIMITY TO A SELECTED CORE, AT LEAST ONE SOFT MAGNETIC PLATE EXTENDING ALONG THE LOWER SIDE OF THE MATRIX, A PLURALITY OF SOFT MAGNETIC RODS, EACH ROD BEING LOCATED IN A SPACE IN THE MATRIX
References Cited (Backward Citations)
US2814031A
Cited
US3060411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |