Patent US3146455A successfully refreshed from Google Patents.
US3146455A
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Magnetic data transferring device
Assignee: International Business Machines Corp
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Filing: 1959-06-30
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Granted: 1964-08-25
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Expires: 1979-06-30
Abstract
No abstract record available.
Inventors
- 👤 Cutaia Alfred
- 👤 Frederick M Demer
- 👤 Martin J Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:24
CPC Classifications
G; G11; G11B; G11B25/00; G11B25/04; G06; G06K; G06K19/00; G06K19/06; G06K19/06187; G06K19/06196; G11B13/00; G11B13/04; G11B5/00; G11B5/008; G11B5/00804; G11B5/00808; G11B5/74; G11B2005/0002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
IN A DEVICE FOR RECORDING DATA ON A CARD HAVING A MATRIX OF PRE-MAGNETIZED SPOTS THEREON, MEANS FORMING A MAGNETICALLY CONDUCTIVE PATH INCLUDING A BED TO RECEIVE THE CARD; A MAGNET; AND A MASKING PLATE BETWEEN SAID MAGNET AND THE CARD HAVING MEANS TO GUIDE MAGNETIC FLUX FROM THE MAGNET TO SELECTED ONES OF SAID SPOTS.
Claim 2
Dependent Claim
56 words
IN A DEVICE FOR RECORDING DATA ON A CARD HAVING A MATRIX OF PRE-MAGNETIZED SPOTS THEREON, MEANS FORMING A MAGNETICALLY CONDUCTIVE PATH INCLUDING A BED TO RECEIVE THE CARD; A MAGNET; AND A MASKING PLATE BETWEEN SAID MAGNET AND THE CARD HAVING MEANS TO GUIDE MAGNETIC FLUX FROM THE MAGNET TO SELECTED ONES OF SAID SPOTS.
References Cited (Backward Citations)
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US2844434A
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US2914756A
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US2793135A
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US2894798A
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US2950161A
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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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |