US3454713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape controlling system of magnetic recording and reproducing devices
Assignee: Japan Broadcasting Corp
•
Filing: 1965-10-11
•
Granted: 1969-07-08
•
Expires: 1985-10-11
Abstract
No abstract record available.
Inventors
- 👤 Akio Yanagimachi
- 👤 Takashi Iwasawa
- 👤 Hitoshi Masuko
- 👤 Keiichi Yaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782; H04N5/783
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3051777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |