US3201767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic storage devices
Assignee: International Computers and Tabulators Ltd
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Filing: 1961-09-07
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Granted: 1965-08-17
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Expires: 1981-09-07
Abstract
No abstract record available.
Inventors
- 👤 Bradley Edward Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:56
CPC Classifications
G; G11; G11C; G11C5/00; G11C5/02; G11C5/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
131 words
AN INFORMATION STORAGE DEVICE, INCLUDING A SUBSTRATE; AN AREA OF INFORMATION STORAGE MAGNETIC THIN FILM SUPPORTED ON SAID SUBSTRATE; FIRST AND SECOND FLEXIBLE ELECTRICALLY-INSTULATING TAPES;. A FIRST CONDUCTOR MOUNTED ON THE FIRST TAPE; A SECOND CONDUCTOR MOUNTED ON THE SECOND TAPE AND OVERLYING SAID FIRST CONDUCTOR AND INSULATED THEREFROM, THE TAPES BEING POSITIONED WITH A FIRST PORTION OF EACH OF SAID CONDUCTORS LYING ADJACENT SAID FILM AREA AND WITH A SECOND PORTION OF EACH OF SAID CONDUCTORS POSITIONED BEYOND SAID FILM AREA, THE FIRST PORTION OF EACH CONDUCTOR BEING MAGNETICALLY COUPLED TO SAID FILM AREA; AND A LAYER OF ELECTRICALLY-CONDUCTIVE FOIL INSULATED FROM SAID CONDUCTORS AND INTERLEAVED ONLY BETWEEN THE SECOND PORTION OF SAID FIRST CONDUCTOR AND THE SECOND PORTION OF SAID SECOND CONDUCTOR TO REDUCE THE INDUCTANCE OF THE CONDUCTORS.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |