US3431353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single motor magnetic tape recording and/or reproducing system
Assignee: Sony Corp
•
Filing: 1965-08-26
•
Granted: 1969-03-04
•
Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Nobutoshi Kihara
- 👤 Yuji Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:04
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; G; G11; G11B; G11B15/00; G11B15/18; G11B15/1808; G11B15/46; G11B5/00; G11B5/008
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) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |