US3588706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic tuning receiver
Assignee: Panasonic Holdings Corp
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Filing: 1968-07-09
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Granted: 1971-06-28
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Expires: 1988-07-09
Abstract
Abstract AN AUTOMATIC TUNING RECEIVER WHEREIN THE REACTANCE VALUE OF A TUNING CIRCUIT IS VARIED IN ACCORDANCE WITH A CONTROL SIGNAL CONSISTING OF A CURRENT OF VOLTAGE TO THEREBY EFFECT TUNING CONTROL, THUS MAKING IT POSSIBLE TO EASILY PERFORM THE SWEEP WITH RESPECT TO A DESIRED BROADCAST SIGNAL.
Inventors
- 👤 Yasuhide Sakai
- 👤 Yoshinori Takagi
- 👤 Masahiro Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:29
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/18; H03J7/20; H03J7/24; H03J7/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |