US3409873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-monitoring automotive conditionwarning system
Assignee: Individual
•
Filing: 1965-12-16
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Granted: 1968-11-05
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Expires: 1985-12-16
Abstract
No abstract record available.
Inventors
- 👤 John J Duffy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:32
CPC Classifications
B; B60; B60Q; B60Q11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A SELF-MONITORING AUTOMOTIVE SYSTEM FOR SIGNALLING REGARDING A CONDITION IN THE AUTOMOBILE AND INCLUDING A BATTERY, AN IGNITION SWITCH, A STRING OF LAMPS INCLUDING A FIRST INCANDESCENT PHASE LAMP AND AN ENDMOST SECOND INCANDESCENT PHASE LAMP, OPTICAL COLORING MEANS OF A DIFFERENT COLOR FOR EACH OF THE LAMPS, MEANS CONNECTING THE BATTERY, IGNITION SWITCH AND LAMPS IN A SERIES CIRCUIT INCLUDING A RETURN LEG BETWEEN THE BATTERY AND THE ENDMOST LAMP, THE FIRST LAMP HAVING CHARACTERISTICS SUCH THAT IT WILL LIGHT WHEN THE FULL BATTERY VOLTAGE IS APPLIED THERETO AND IS UNLIT WHEN IN SAID SERIES CIRCUIT AND THE SECOND LAMP HAVING CHARACTERISTICS SUCH THAT IT WILL LIGHT WHEN IN SAID SERIES CIRCUIT, AND FIRST GROUNDING CIRCUIT MEANS INCLUDING A SWITCH MOVABLE BETWEEN OPEN AND CLOSED POSITIONS IN RESPONSE TO, RESPECTIVELY, ONE OR ANOTHER PHASE OF THE
Claim 2
Dependent Claim
137 words
A SELF-MONITORING AUTOMOTIVE SYSTEM FOR SIGNALLING REGARDING A CONDITION IN THE AUTOMOBILE AND INCLUDING A BATTERY, AN IGNITION SWITCH, A STRING OF LAMPS INCLUDING A FIRST INCANDESCENT PHASE LAMP AND AN ENDMOST SECOND INCANDESCENT PHASE LAMP, OPTICAL COLORING MEANS OF A DIFFERENT COLOR FOR EACH OF THE LAMPS, MEANS CONNECTING THE BATTERY, IGNITION SWITCH AND LAMPS IN A SERIES CIRCUIT INCLUDING A RETURN LEG BETWEEN THE BATTERY AND THE ENDMOST LAMP, THE FIRST LAMP HAVING CHARACTERISTICS SUCH THAT IT WILL LIGHT WHEN THE FULL BATTERY VOLTAGE IS APPLIED THERETO AND IS UNLIT WHEN IN SAID SERIES CIRCUIT AND THE SECOND LAMP HAVING CHARACTERISTICS SUCH THAT IT WILL LIGHT WHEN IN SAID SERIES CIRCUIT, AND FIRST GROUNDING CIRCUIT MEANS INCLUDING A SWITCH MOVABLE BETWEEN OPEN AND CLOSED POSITIONS IN RESPONSE TO, RESPECTIVELY, ONE OR ANOTHER PHASE OF THE
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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |