US3176275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Information storage devices
Assignee: Ferranti International PLC
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Filing: 1963-04-05
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Granted: 1965-03-30
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Expires: 1983-04-05
Abstract
No abstract record available.
Inventors
- 👤 Gribble Maurice Woolmer
- 👤 Naylor Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:45
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/08; G11C17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
AN INFORMATION STORAGE DEVICE COMPRISING FIRST AND SECOND SETS OF TRANSMISSION LINES, EACH SET OF WHICH COMPRISES FIRST AND SECOND SETS OF SPACED ELECTRICAL CONDUCTORS MOUNTED RESPECTIVELY IN FIRST AND SECOND PARALLEL PLANES, EACH TRANSMISSION LINE OF SAID SECOND SET CROSSING EACH TRANSMISSION LINE TO OF SAID FIRST SET TO DEFINE A PLURALITY OF STORAGE LOCATIONS AT EACH OF WHICH ONE TRANSMISSION LINE OF SAID FIRST SET MAY BE ELECTRICALLY COUPLED TO ONE TRANSMISSION LINE OF SAID SECOND SET, EACH TRANSMISSION LINE OF SAID FIRST SECOND SETS BEING TERMINATED AT ONE END WITH A RESISTANCE HAVING A VALUE EQUAL TO THE CHARACTERISTIC IMPEDANCE OF SAID TRANSMISSION LINE, AND SHEET OF ELECTRICALLY CONDUCTIVE MATERIAL ADAPTED TO BE INSERTED BETWEEN SAID FIRST AND SECOND SETS OF TRANSMISSION LINES, SAID SHEET OF
Claim 2
Dependent Claim
129 words
AN INFORMATION STORAGE DEVICE COMPRISING FIRST AND SECOND SETS OF TRANSMISSION LINES, EACH SET OF WHICH COMPRISES FIRST AND SECOND SETS OF SPACED ELECTRICAL CONDUCTORS MOUNTED RESPECTIVELY IN FIRST AND SECOND PARALLEL PLANES, EACH TRANSMISSION LINE OF SAID SECOND SET CROSSING EACH TRANSMISSION LINE TO OF SAID FIRST SET TO DEFINE A PLURALITY OF STORAGE LOCATIONS AT EACH OF WHICH ONE TRANSMISSION LINE OF SAID FIRST SET MAY BE ELECTRICALLY COUPLED TO ONE TRANSMISSION LINE OF SAID SECOND SET, EACH TRANSMISSION LINE OF SAID FIRST SECOND SETS BEING TERMINATED AT ONE END WITH A RESISTANCE HAVING A VALUE EQUAL TO THE CHARACTERISTIC IMPEDANCE OF SAID TRANSMISSION LINE, AND SHEET OF ELECTRICALLY CONDUCTIVE MATERIAL ADAPTED TO BE INSERTED BETWEEN SAID FIRST AND SECOND SETS OF TRANSMISSION LINES, SAID SHEET OF
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |