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US2708694A
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US
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Hum bucking magnetic record transducing heads
Assignee: Clevite Corp
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Filing: 1946-07-30
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Granted: 1955-05-17
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Expires: 1966-07-30
Abstract
No abstract record available.
Inventors
- 👤 Begun Semi Joseph
- 👤 Alfred P Dank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:30
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/602; G11B5/00; G11B5/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1883561A
Cited
DE622623C
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US2048487A
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DE725830C
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US2233621A
Cited
CH221638A
Cited
US2351003A
Cited
US2493742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-16 | 1958-11-15 | 1959-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-16 | 1962-11-15 | 1963-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-16 | 1966-11-15 | 1967-05-17 | $7700.00 | Window Closed / Lapsed |