US2897290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic tracking device for transverse sound track tape recorders
Assignee: SoundScriber Corp
•
Filing: 1956-12-14
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Granted: 1959-07-28
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Expires: 1976-12-14
Abstract
No abstract record available.
Inventors
- 👤 William H Lyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:56
CPC Classifications
G; G11; G11B; G11B21/00; G11B21/02; G11B21/12; G01; G01D; G01D15/00; G01D15/12; G11B15/00; G11B15/18; G11B15/1808; G11B15/60; G11B15/602; G11B15/61; G11B21/08; G11B5/00; G11B5/008; G11B5/48; G11B5/52; G11B5/53; H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2809238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |