Patent US5630795A successfully refreshed from Google Patents.
Patent US3590288A successfully refreshed from Google Patents.
Patent US3149316A successfully refreshed from Google Patents.
US3149316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductive matrix arrangement for sensing magnetic configurations
Assignee: International Business Machines Corp
•
Filing: 1960-09-09
•
Granted: 1964-09-15
•
Expires: 1980-09-09
Abstract
No abstract record available.
Inventors
- 👤 Edward A Quade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:55
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/08; G06K7/082; G06K7/087; G06V; G06V10/00; G06V10/10; G06V30/00; G06V30/10; G06V30/14; G06V30/144; G11; G11B; G11B5/00; G11B5/127; G11B5/33; G11C; G11C17/00; G11C17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A MATRIX DEVICE COMPRISING: A PLURALITY OF CROSS-POSITIONED INPUT AND OUTPUT CURRENT CONDUCTOR MEANS DEFINING NORMALLY INACTIVE MATRIX POINTS; AND MEANS FOR INDUCTIVELY COUPLING SAID NORMALLY INACTIVE MATRIX POINTS COMPRISING A UNITARY SUPPORT HAVING THEREON FIELD-DISTORTING MAGNETIC STRIP MEANS ARRANGED TO DEFINE DISCRETE CHARACTER INFORMATION, SAID SUPPORT BEING POSITIONABLE ADJACENT SAID MATRIX POINTS TO EFFECT INDUCTIVE COUPLING OF SAID MAGNETIC STRIP MEANS WITH SELECTED ONES OF SAID MATRIX POINTS TO PROVIDE SIGNAL OUTPUTS ON THE OUTPUT CONDUCTORS FORMING PART OF SAID SELECTED MATRIX POINTS.
Claim 2
Dependent Claim
84 words
A MATRIX DEVICE COMPRISING: A PLURALITY OF CROSS-POSITIONED INPUT AND OUTPUT CURRENT CONDUCTOR MEANS DEFINING NORMALLY INACTIVE MATRIX POINTS; AND MEANS FOR INDUCTIVELY COUPLING SAID NORMALLY INACTIVE MATRIX POINTS COMPRISING A UNITARY SUPPORT HAVING THEREON FIELD-DISTORTING MAGNETIC STRIP MEANS ARRANGED TO DEFINE DISCRETE CHARACTER INFORMATION, SAID SUPPORT BEING POSITIONABLE ADJACENT SAID MATRIX POINTS TO EFFECT INDUCTIVE COUPLING OF SAID MAGNETIC STRIP MEANS WITH SELECTED ONES OF SAID MATRIX POINTS TO PROVIDE SIGNAL OUTPUTS ON THE OUTPUT CONDUCTORS FORMING PART OF SAID SELECTED MATRIX POINTS.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |