US3196450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multibit magnetic transducer
Assignee: AT&T Inc
•
Filing: 1961-01-30
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Granted: 1965-07-20
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Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Daryl M Chapin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:55
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/265; G11B15/00; G11B15/02; G11B15/12; G11B15/18; G11B15/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A RECORD TRANSDUCER FOR SIMULTANEOUSLY RECORDING A PLURALITY OF BITS OF INFORMATION IN A SINGLE CHANNEL OF A MAGNETIC MEDIUM, A PLURALITY OF LEG MEMBERS OF MGNETIC MATERIAL, MEANS FOR POSITIONING SAID LEG MEMBERS TO DEFINE A PLURALITY OF SIGNAL TRANSLATING GAPS, MAGNETIC RECORDING CIRCUIT MEANS POSITIONED BETWEEN ADJACENT ONES OF SAID PLURALITY OF LEG MEMBERS FOR DEFINING A MAGNETIC RECORDING PATH THROUGH EACH PAIR OF SAID ADJACENT LEG MEMBERS, EACH OF SAID LEG MEMBERS BEING A PART OF AT LEAST TWO MAGNETIC RECORDING PATHS, MEANS FOR POSITIONING SAID PLURALITY OF SIGNAL TANSLATING GAPS ADJACENT SAID SINGLE CHANNEL OF SAID MAGNETIC MEDIUM, AND MEANS FOR INDIVIDUALLY ENERGIZING SAID MAGNETIC RECORDING CIRCUIT MEANS.
Claim 2
Dependent Claim
113 words
IN A RECORD TRANSDUCER FOR SIMULTANEOUSLY RECORDING A PLURALITY OF BITS OF INFORMATION IN A SINGLE CHANNEL OF A MAGNETIC MEDIUM, A PLURALITY OF LEG MEMBERS OF MGNETIC MATERIAL, MEANS FOR POSITIONING SAID LEG MEMBERS TO DEFINE A PLURALITY OF SIGNAL TRANSLATING GAPS, MAGNETIC RECORDING CIRCUIT MEANS POSITIONED BETWEEN ADJACENT ONES OF SAID PLURALITY OF LEG MEMBERS FOR DEFINING A MAGNETIC RECORDING PATH THROUGH EACH PAIR OF SAID ADJACENT LEG MEMBERS, EACH OF SAID LEG MEMBERS BEING A PART OF AT LEAST TWO MAGNETIC RECORDING PATHS, MEANS FOR POSITIONING SAID PLURALITY OF SIGNAL TANSLATING GAPS ADJACENT SAID SINGLE CHANNEL OF SAID MAGNETIC MEDIUM, AND MEANS FOR INDIVIDUALLY ENERGIZING SAID MAGNETIC RECORDING CIRCUIT MEANS.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |