US3230520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signalling controlled system
Assignee: Individual
•
Filing: 1963-03-18
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Granted: 1966-01-18
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Eli M Lurie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:35
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A SIGNALLING SYSTEM INCLUDING A FIRST, A SECOND, A THIRD, A FOURTH, A FIFTH AND A SIXTH SWITCH SECTION; A FIRST AND A SECOND INDICATOR MEANS; A POWER SOURCE; EACH OF SAID SWITCH SECTIONS BEING MANUALLY OPERABLE BETWEEN A FIRST AND A SECOND POSITION; FIRST AND SECOND CIRCUIT MEANS EACH CONNECTING SAID SOURCE TO SAID FIRST INDICATOR MEANS FOR ENERGIZATION OF THE LATTER; SAID FIRST CIRCUIT MEANS INCLUDING SAID FIRST AND SAID FOURTH SWITCH SECTIONS EACH IN ITS SAID FIRST POSITION; SAID SECOND CIRCUIT MEANS INCLUDING SAID FIRST AND SAID FOURTH SWITCH MEANS EACH IN ITS SAID SECOND POSITION; THIRD AND FOURTH CIRCUIT MEANS EACH CONNECTING SAID SOURCE TO SAID SECOND INDICATOR MEANS FOR ENERGIZATION OF THE LATTER; SAID THIRD CIRCUIT MEANS INCLUDING SAID THRID AND SAID SIXTH SWITCH SECTIONS EACH IN ITS SAID FIRST POSITION; SAID FOURTH CIRCUIT MEANS INCLUDING SAID THIRD AND SAID SIXTH SWITCH SECTIONS EACH IN ITS SAID
Claim 2
Dependent Claim
152 words
A SIGNALLING SYSTEM INCLUDING A FIRST, A SECOND, A THIRD, A FOURTH, A FIFTH AND A SIXTH SWITCH SECTION; A FIRST AND A SECOND INDICATOR MEANS; A POWER SOURCE; EACH OF SAID SWITCH SECTIONS BEING MANUALLY OPERABLE BETWEEN A FIRST AND A SECOND POSITION; FIRST AND SECOND CIRCUIT MEANS EACH CONNECTING SAID SOURCE TO SAID FIRST INDICATOR MEANS FOR ENERGIZATION OF THE LATTER; SAID FIRST CIRCUIT MEANS INCLUDING SAID FIRST AND SAID FOURTH SWITCH SECTIONS EACH IN ITS SAID FIRST POSITION; SAID SECOND CIRCUIT MEANS INCLUDING SAID FIRST AND SAID FOURTH SWITCH MEANS EACH IN ITS SAID SECOND POSITION; THIRD AND FOURTH CIRCUIT MEANS EACH CONNECTING SAID SOURCE TO SAID SECOND INDICATOR MEANS FOR ENERGIZATION OF THE LATTER; SAID THIRD CIRCUIT MEANS INCLUDING SAID THRID AND SAID SIXTH SWITCH SECTIONS EACH IN ITS SAID FIRST POSITION; SAID FOURTH CIRCUIT MEANS INCLUDING SAID THIRD AND SAID SIXTH SWITCH SECTIONS EACH IN ITS SAID
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |