US3277442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal brightness control
Assignee: Motors Liquidation Co
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Filing: 1963-03-06
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Granted: 1966-10-04
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Expires: 1983-03-06
Abstract
No abstract record available.
Inventors
- 👤 William R Kearney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:29
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2603
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A WARNING LAMP INTENSITY CONTROL CIRCUIT COMPRISING A D.C. SOURCE OF POWER, A WARNING LAMP, A PARALLEL CIRCUIT COMPRISING A LIGHT SENSITIVE RESISTOR AND A SECOND RESISTOR, A FLASHER CONNECTED TO SAID SOURCE, A TURN SIGNAL SWITCH, SAID LAMP AND SAID PARALLEL CIRCUIT CONNECTED DIRECTLY ACROSS SAID SOURCE AND SAID FLASHER THROUGH SAID SWITCH WHEREBY SAID LAMP IS FLASHED BETWEEN ZERO INTENSITY AND A LEVEL OF VISIBLE INTENSITY WHICH IS CONTINUOUSLY VARIABLE IN ACCORDANCE WITH THE VALUE OF AMBIENT ILLUMINATION IMPINGING UPON SAID LIGHT-SENSITIVE RESISTOR.
Claim 2
Dependent Claim
85 words
A WARNING LAMP INTENSITY CONTROL CIRCUIT COMPRISING A D.C. SOURCE OF POWER, A WARNING LAMP, A PARALLEL CIRCUIT COMPRISING A LIGHT SENSITIVE RESISTOR AND A SECOND RESISTOR, A FLASHER CONNECTED TO SAID SOURCE, A TURN SIGNAL SWITCH, SAID LAMP AND SAID PARALLEL CIRCUIT CONNECTED DIRECTLY ACROSS SAID SOURCE AND SAID FLASHER THROUGH SAID SWITCH WHEREBY SAID LAMP IS FLASHED BETWEEN ZERO INTENSITY AND A LEVEL OF VISIBLE INTENSITY WHICH IS CONTINUOUSLY VARIABLE IN ACCORDANCE WITH THE VALUE OF AMBIENT ILLUMINATION IMPINGING UPON SAID LIGHT-SENSITIVE RESISTOR.
References Cited (Backward Citations)
GB809574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |