US3130134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plated circuit magnetic core array
Assignee: International Business Machines Corp
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Filing: 1957-01-09
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Granted: 1964-04-21
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Expires: 1977-01-09
Abstract
No abstract record available.
Inventors
- 👤 Richard A Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:10
CPC Classifications
G; G11; G11C; G11C5/00; G11C5/02; G11C5/04; G11C5/05; G11C11/00; G11C11/02; G11C11/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
IN A PROCESS OF FABRICATING AN ARRAY OF ANNULAR MAGNETIC CORES, THE STEPS OF (A) FORMING A PLURALITY OF OPENINGS IN A SHEET OF INSULATING MATERIAL, (B) PLACING INDIVIDUAL CORES CO-AXIALLY IN SAID OPENINGS, (C) APPLYING A FIRST INSULATING COATING OVER THE EXPOSED SURFACES OF SAID SHEET AND SAID CORES, (D) FORMING AN ELECTRODEPOSITED METAL CIRCUIT ON SAID INSULATING LAYER AND EXTENDING THROUGH SAID CORES, (E) APPLYING A SECOND INSULATING COATING OVER THE ENTIRE EXPOSED SURFACES OF SAID CIRCUIT, AND (F) FORMING A SECOND ELECTRODEPOSITED CIRCUIT ON THE SECOND INSULATING LAYER AND EXTENDING THROUGH SAID CORE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |