Patent US3484562A successfully refreshed from Google Patents.
US3484562A
Expired / Lapsed
US
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Magnetic transducer with clamped body sections to hold core pieces
Assignee: Nortronics Co Inc
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Filing: 1966-09-21
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Granted: 1969-12-16
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Expires: 1986-09-21
Abstract
No abstract record available.
Inventors
- 👤 Leonard E Kronfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:30
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/24; H01F27/26; H01F27/263; G; G11; G11B; G11B5/00; G11B5/10; G11B5/127; G11B5/29; G11B5/295; H04; H04R; H04R11/00; H04R11/08; H04R11/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB794978A
Cited
US2920149A
Cited
US2945216A
Cited
GB882042A
Cited
US3156919A
Cited
US3211843A
Cited
US3370282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |