US3588372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for transmitting information between a fixed location and a railway vehicle
Assignee: Umicore NV SA
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Filing: 1969-02-19
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Granted: 1971-06-28
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Expires: 1989-02-19
Abstract
Abstract THIS DISCLOSURE RELATES TO A PERIODICALLY CROSSED CABLE LOOP WHICH IS POSITIONED BETWEEN TWO RAILS OF A RAILWAY FOR PERMITTING THE EXCHANGE OF INFORMATION BETWEEN A CENTRAL LOCATION AND A RAILWAY VEHICLE. THE DISCLOSURE IS CHARACTERIZED BY THE FACT THAT ONLY ONE SIDE OF THE PERIODICALLY CROSSED CABLE LOOP PLACED IN THE AXIS OF THE RAILWAY IS COUPLED TO AN ANTENNA POSITIONED ON THE RAILWAY VEHICLE IN ORDER TO REDUCE INTERFERENCE. THE ANTENNA IS HORIZONTAL AND DISPOSED PERPENDICULARLY TO SAID ONE SIDE OF THE PERIODICALLY CROSSED CABLE LOOP AND SYMMETRICALLY WITH RESPECT THERETO.
Inventors
- 👤 Christian Jauquet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:00
CPC Classifications
B; B61; B61L; B61L3/00; B61L3/16; B61L3/22; B61L3/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |