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US3214747A Expired / Lapsed US ⏱️ 0.0 years remaining

Signaling system

Assignee: Individual
•
Filing: 1963-04-09
•
Granted: 1965-10-26
•
Expires: 1983-04-09
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Abstract

No abstract record available.

Inventors

  • 👤 Eli M Lurie

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 22:26
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 259 words
A SIGNALING ARRANGEMENT OF THE CLASS DESCRIBED COMPRISING AN INDICATOR AT A FIRST LOCATION; A SOURCE OF ELECTRICAL ENERGY HAVING FIRST AND SECOND TERMINALS AT DIFFERENT POTENTIALS; A SWITCHING DEVICE AT A SECOND LOCATION REMOTE FROM SAID FIRST LOCATION; SAID SWITCHING DEVICE INCLUDING A FIRST SECTION AND A SECOND SECTION; SAID FIRST SECTION INCLUDING AN ELEMENT NORMALLY IN A FIRST POSITION AND OPERABLE TO A SECOND POSITION; A FIRST SWITCH AT SAID FIRST LOCATION; SAID SECTION INCLUDING A SECOND SWITCH; EACH OF SAID SWITCHES BEING OPERABLE BETWEEN A FIRST AND A SECOND POSITION; CYCLICALLY OPERATING CIRCUIT INTERRUPTING MEANS; FIRST CIRCUIT MEANS, INCLUDING SAID INDICATOR, SAID ELEMENT IN ITS SAID FIRST POSITION AND BOTH OF SAID SWITCHES IN THEIR FIRST POSITIONS, FORMING A COMPLETE FIRST SERIES PATH BETWEEN SAID TERMINALS FOR CONTINUOUS ENERGIZATION OF SAID INDICATOR; SECOND CIRCUIT MEANS, INCLUDING SAID INDICATOR, SAID ELEMENT IN ITS SAID FIRST POSITION AND BOTH OF SAID SWITCHES IN THEIR SAID SECOND POSITIONS, FORMING A COMPLETE SECOND SERIES PATH BETWEEN SAID TERMINALS FOR CONTINUOUS ENERGIZATION OF SAID INDICATOR; SAID FIRST SERIES PATH BEING INTERRUPTED WHEN EITHER OF SAID SWITCHES IS IN ITS SAID SECOND POSITION AND SAID SECOND SERIES PATH BEING INTERRUPTED WHEN EITHER OF SAID SWITCHES IS IN ITS SAID FIRST POSITION; THIRD CIRCUIT MEANS, INCLUDING SAID INDICATOR, SAID ELEMENT IN ITS SAID SECOND POSITION AND SAID INTERRUPTING MEANS, FORMING A THIRD SERIES PATH BETWEEN SAID TERMINALS; SAID INTERRUPTING MEANS ALTERNATELY COMPLETING AND INTERRUPTING SAID THIRD SERIES PATH CAUSING SAID INDICATOR TO BE ENERGIZED INTERMITTENTLY WHEN SAID ELEMENT IS IN SAID SECOND POSITION.

References Cited (Backward Citations)

US1189657A Cited
US1327837A Cited
DE369807C Cited
US2298840A Cited
US2701872A Cited
US2980890A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-10-25 1969-04-26 1969-10-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-10-25 1973-04-26 1973-10-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-10-25 1977-04-26 1977-10-26 $7700.00 Window Closed / Lapsed

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