US3588612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state lamp flasher
Assignee: United Carr Inc
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Filing: 1968-06-12
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Granted: 1971-06-28
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Expires: 1988-06-12
Abstract
Abstract THIS IS A SOLID STATE LAMP FLASHER CIRCUIT WHICH HAS DIODE AND TRANSISTOR MEANS AS A SHORT CIRCUIT PROTECTION AND ALSO PROTECTS THE POWER STAGE OF THE CIRCUIT FROM EXCESSIVE TRANSIENT VOLTAGES BY USING A DIODE TO TURN THE POWER STAGE ON. A DIODE ALSO USED TO TURN THE POWER STAGE ON WHERE REVERSE POLARITY CONDITIONS EXIST PROTECTING THAT PORTION OF THE CIRCUIT AGAINST PARTIAL TURNON.
Inventors
- 👤 Douglas B Leathem
- 👤 Raymond A Jones
- 👤 Walter F Pope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:27
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/20
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 |