US2628572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic control system for railway traffic
Assignee: Societe dElectricite Mors SA
•
Filing: 1947-03-13
•
Granted: 1953-02-17
•
Expires: 1967-03-13
Abstract
No abstract record available.
Inventors
- 👤 Goff Lucien Joseph Armand Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:55
CPC Classifications
B; B61; B61L; B61L17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US928004A
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US1392630A
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US1797864A
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US1702997A
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US1883907A
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US2258106A
Cited
US2484049A
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US2429266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |