US3588591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automobile headlight system including time delay circuit of cigar lighter
Assignee: Motors Liquidation Co
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Filing: 1969-12-11
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Granted: 1971-06-28
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Expires: 1989-12-11
Abstract
Abstract A VEHICLE HEADLAMP CONTROL CIRCUIT WHEREIN CURRENT IS SUPPLIED THROUGH A CIGAR LIGHTER AND A RELAY COIL TO TURN ON THE HEADLAMPS WITH THE VEHICLE IGNITION SWITCH OPEN AND TO TURN THEM OFF AUTOMATICALLY. A RESISTOR IN SERIES WITH THE CIGAR LIGHTER PERMITS ALTERNATION OF THE TURNOFF DELAY TIME. CLOSURE OF THE IGNITION SWITCH PROVIDES A SHUNT PATH ACROSS THE RELAY COIL AND RESISTOR FOR NORMAL CIGAR LIGHTER OPERATION.
Inventors
- 👤 John R Harris
- 👤 Gerald E Rigsby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:05
CPC Classifications
B; B60; B60Q; B60Q9/00; B60Q9/001
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 |