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US3559080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal receiving system
Assignee: Kaijo Denki Co Ltd
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Filing: 1967-09-12
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Granted: 1971-01-26
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Expires: 1987-09-12
Abstract
Abstract A RECEIVING SYSTEM FOR DETECTING THE INCOMING INSTANT OF AN AC SIGNAL, WHERE THE SETTING OF A MULTIVIBRATOR IS CARRIED OUT WHEN THE INSTANTANEOUS LEVEL OF THE SIGNAL EXCEEDS A PREDETERMINED THRESHOLD LEVEL AND THE RESETTING OF THE MULTIVIBRATOR IS CARRIED OUT WHEN THE NUMER OF ZERO-CROSSINGS OF THE SIGNAL REACHES A PREDETERMINED NUMBER, THE SYSTEM DETECTING THE INCOMING INSTANT OF THE SIGNAL AT THE RESETTING INSTANT OF THE MULTIVRATOR.
Inventors
- 👤 Yasuhiro Kobori
- 👤 Kunio Murakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:34
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02; H03D3/04
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |