Patent US3130391A successfully refreshed from Google Patents.
US3130391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement for ferrite-core storage devices
Assignee: International Standard Electric Corp
•
Filing: 1960-07-25
•
Granted: 1964-04-21
•
Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Merz Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:36
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/02; G11C17/08; G11C17/10; G11C17/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A CIRCUIT ARRANGEMENT FOR FERRITE CORE STORAGE DEVICES COMPRISING A SINGLE-APERTURED FERRITE CORE, A READING-OUT WIRE PASSING THROUGH SAID CORE, TWO WRITING-IN WIRES PASSING THROUGH SAID CORE, MEANS FOR APPLYING A SIGNAL TO SAID WRITING-IN WIRES, AN ADDITIONAL WIRE PASSING THROUGH SAID CORE, ALL OF SAID WIRES PASSING THROUGH THE SINGLE APERTURE IN SAID CORE, AND SHORTING MEANS AFFIXED TO SAID ADDITIONAL WIRE FOR SUPPRESSING A READ-OUT SIGNAL ON SAID READ-OUT WIRE WHEN SAID WRITING-IN WIRES ARE SUBJECTED TO A SIGNAL.
Claim 2
Dependent Claim
81 words
A CIRCUIT ARRANGEMENT FOR FERRITE CORE STORAGE DEVICES COMPRISING A SINGLE-APERTURED FERRITE CORE, A READING-OUT WIRE PASSING THROUGH SAID CORE, TWO WRITING-IN WIRES PASSING THROUGH SAID CORE, MEANS FOR APPLYING A SIGNAL TO SAID WRITING-IN WIRES, AN ADDITIONAL WIRE PASSING THROUGH SAID CORE, ALL OF SAID WIRES PASSING THROUGH THE SINGLE APERTURE IN SAID CORE, AND SHORTING MEANS AFFIXED TO SAID ADDITIONAL WIRE FOR SUPPRESSING A READ-OUT SIGNAL ON SAID READ-OUT WIRE WHEN SAID WRITING-IN WIRES ARE SUBJECTED TO A SIGNAL.
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) | 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 |