US3349281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light sensitive control system for automobile lighting circuits
Assignee: Motors Liquidation Co
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Filing: 1964-12-29
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Granted: 1967-10-24
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Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Larry L Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:57
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/02; B60Q1/04; B60Q1/14; B60Q1/1415; B60Q1/1423; B60Q2300/00; B60Q2300/05; B60Q2300/052; B60Q2300/30; B60Q2300/31; B60Q2300/314
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
131 words
APPARATUS FOR ENERGIZING THE HEAD LAMPS AND TAIL LAMPS OF AN AUTOMOTIVE VEHICLE IN RESPONSE TO AMBIENT LIGHT CONDITIONS COMPRISING: A SOURCE OF ELECTRICAL POWER AND A RELAY COIL, A NORMALLY NONCONDUCTIVE SWITCHING DEVICE CONNECTED IN SERIES WITH THE SOURCE AND COIL, A LIGHT SENSING DEVICE CONNECTED TO RENDER THE SWITCHING DEVICE CONDUCTIVE WHEN THE AMBIENT LIGH DECREASES TO A PREDETERMINED VALUE, A TRANSISTOR HAVING EMITTER, COLLECTOR AND BASE ELECTRODES, A SWITCH HAVING AN ARMATURE CONTROLLED BY THE RELAY COIL AND FIRST AND SECOND TERMINALS WHICH MAY BE SEPARATELY CONTACTED BY THE ARMATURE, BIAS MEANS CONNECTED TO THE FIRST TERMINAL, THE TAIL LAMPS BEING CONNECTED TO THE SECOND TERMINAL, THE ARMATURE BEING CONNECTED TO THE BASE ELECTRODE OF THE TRANSISTOR, THE SOURCE BEING CONNECTED TO THE EMITTER ELECTRODE AND THE HEAD
References Cited (Backward Citations)
US3280374A
Cited
US3274434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |