Patent US2829208A successfully refreshed from Google Patents.
US2829208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency tape recorder
Assignee: Individual
•
Filing: 1955-10-20
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Granted: 1958-04-01
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Expires: 1975-10-20
Abstract
No abstract record available.
Inventors
- 👤 Lacy L Dawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:39
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2245286A
Cited
US2688663A
Cited
US2643130A
Cited
US2773120A
Cited
US2677727A
Cited
US2711901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |