Patent US3051785A successfully refreshed from Google Patents.
US3051785A
Expired / Lapsed
US
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High speed recording apparatus
Assignee: TDK Micronas GmbH
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Filing: 1957-05-28
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Granted: 1962-08-28
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Expires: 1977-05-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:38
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/20; H; H04; H04L; H04L17/00; H04L17/16; H04L17/20
Claims Analysis
Total Claims: 0
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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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |