Patent US3391981A successfully refreshed from Google Patents.
Patent EP0052016A1 successfully refreshed from Google Patents.
Patent US2425963A successfully refreshed from Google Patents.
Patent US4013498A successfully refreshed from Google Patents.
Patent US3385926A successfully refreshed from Google Patents.
US3385926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system in a magnetic recording and reproducing apparatus
Assignee: Victor Company of Japan Ltd
•
Filing: 1964-11-09
•
Granted: 1968-05-28
•
Expires: 1984-11-09
Abstract
No abstract record available.
Inventors
- 👤 Tanaka Tomiyuki
- 👤 Suzuki Takahiro
- 👤 Kosugi Tsuneo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:05
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3179752A
Cited
US3293359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |