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Patent US2710191A successfully refreshed from Google Patents.
US2710191A
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Magnetic record transducing system
Assignee: Clevite Corp
•
Filing: 1949-05-19
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Granted: 1955-06-07
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Expires: 1969-05-19
Abstract
No abstract record available.
Inventors
- 👤 Alfred Leslie W Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:07
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US649725A
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US2010690A
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FR783581A
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US2043884A
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US2137157A
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US2109468A
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US2082353A
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US2229293A
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US2333463A
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US2233915A
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US2378388A
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US2469423A
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US2381463A
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US2447473A
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US2535480A
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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) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |