US3332085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-track magnetic recorder with rotatable head assembly
Assignee: Unisys Corp
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Filing: 1963-08-01
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Granted: 1967-07-18
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Expires: 1983-08-01
Abstract
No abstract record available.
Inventors
- 👤 James L Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:09
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/265; G11B15/00; G11B15/18; G11B15/44; G11B15/444; G11B5/48; G11B5/488; G11B5/54; G11B5/55; G11B5/5513; G11B5/5517
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN A MAGNETIC RECORDING SYSTEM ADAPTED TO SELECTIVELY RECORD IN SELECTED ONES OF A PLURALITY OF TRACKS ON A MAGNETIZABLE MEDIA, THE COMBINATION COMPRISING: A ROTATABLE MAGNETIC TRANSDUCER ASSEMBLY COMPRISING N NUMBER, WHERE N IS GREATER THAN 1, OF MAGNETIC TRANSDUCERS ARRANGED IN SAID ASSEMBLY TO RECORD UPON N ODD NUMBERED TRACKS OR N EVEN NUMBERED TRACKS OF SAID MAG-
Claim 2
Dependent Claim
60 words
IN A MAGNETIC RECORDING SYSTEM ADAPTED TO SELECTIVELY RECORD IN SELECTED ONES OF A PLURALITY OF TRACKS ON A MAGNETIZABLE MEDIA, THE COMBINATION COMPRISING: A ROTATABLE MAGNETIC TRANSDUCER ASSEMBLY COMPRISING N NUMBER, WHERE N IS GREATER THAN 1, OF MAGNETIC TRANSDUCERS ARRANGED IN SAID ASSEMBLY TO RECORD UPON N ODD NUMBERED TRACKS OR N EVEN NUMBERED TRACKS OF SAID MAG-
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |