US3408646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for localizing trains along a track
Assignee: Thales SA
•
Filing: 1967-05-09
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Granted: 1968-10-29
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Expires: 1987-05-09
Abstract
No abstract record available.
Inventors
- 👤 Simon Jean-Claude
- 👤 Broussaud Georges Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:25
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/32; H01Q1/3208; H01Q1/3225; B; B61; B61L; B61L25/00; B61L25/02; B61L25/021; B61L25/026; B61L3/00; B61L3/02; B61L3/08; B61L3/12; B61L3/125; H01P; H01P3/00; H01P3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR939248A
Cited
US2702342A
Cited
US2698377A
Cited
US2716186A
Cited
US3305682A
Cited
FR1378440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |