US3084338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Master caution light control
Assignee: Lockheed Martin Corp
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Filing: 1960-07-29
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Granted: 1963-04-02
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Expires: 1980-07-29
Abstract
No abstract record available.
Inventors
- 👤 Robert C Mauer
- 👤 Robert S Leventhal
- 👤 Willem F Tenge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:55
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A MASTER CAUTION LIGHT CONTROL COMPRISED OF A PLURALITY OF WARNING LIGHTS EACH CONNECTED TO A VOLTAGE SOURCE, A NORMALLY OPEN SWITCH BETWEEN EACH WARNING LIGHT AND GROUND, A SILICON CONTROLLED RECTIFIER CONNECTED TO THE VOLTAGE SOURCE, A MASTER CAUTION LIGHT CONNECTED TO THE SILICON CONTROLLED RECTIFIER TO GROUND, A FIRST VOLTAGE DIVIDER CONNECTED BETWEEN THE VOLTAGE SOURCE AND GROUND, MEANS TO TAP A VOLTAGE FROM THE FIRST VOLTAGE DIVIDER TO THE EMITTER OF A PNP TRANSISTOR, A SECOND VOLTAGE DIVIDER BETWEEN THE VOLTAGE SOURCE AND GROUND, MEANS TO TAP THE SECOND VOLTAGE DIVIDER AT A VOLTAGE ABOVE THE VOLTAGE OF THE FIRST TAPPED VOLTAGE, MEANS TO CONNECT THE SECOND TAPPED VOLTAGE TO THE BASE OF THE PNP TRANSISTOR, A RESISTOR TO CONNECT THE SECOND TAPPED VOLTAGE THROUGH A DIODE AND A CONDENSER TO EACH WARNING LIGHT AND ITS SWITCH,
Claim 2
Dependent Claim
140 words
A MASTER CAUTION LIGHT CONTROL COMPRISED OF A PLURALITY OF WARNING LIGHTS EACH CONNECTED TO A VOLTAGE SOURCE, A NORMALLY OPEN SWITCH BETWEEN EACH WARNING LIGHT AND GROUND, A SILICON CONTROLLED RECTIFIER CONNECTED TO THE VOLTAGE SOURCE, A MASTER CAUTION LIGHT CONNECTED TO THE SILICON CONTROLLED RECTIFIER TO GROUND, A FIRST VOLTAGE DIVIDER CONNECTED BETWEEN THE VOLTAGE SOURCE AND GROUND, MEANS TO TAP A VOLTAGE FROM THE FIRST VOLTAGE DIVIDER TO THE EMITTER OF A PNP TRANSISTOR, A SECOND VOLTAGE DIVIDER BETWEEN THE VOLTAGE SOURCE AND GROUND, MEANS TO TAP THE SECOND VOLTAGE DIVIDER AT A VOLTAGE ABOVE THE VOLTAGE OF THE FIRST TAPPED VOLTAGE, MEANS TO CONNECT THE SECOND TAPPED VOLTAGE TO THE BASE OF THE PNP TRANSISTOR, A RESISTOR TO CONNECT THE SECOND TAPPED VOLTAGE THROUGH A DIODE AND A CONDENSER TO EACH WARNING LIGHT AND ITS SWITCH,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |