US2913711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal control system
Assignee: TDK Micronas GmbH
•
Filing: 1954-10-15
•
Granted: 1959-11-17
•
Expires: 1974-10-15
Abstract
No abstract record available.
Inventors
- 👤 Polyzou James
- 👤 Jatlow Jacob Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:10
CPC Classifications
G; G08; G08B; G08B29/00; G08B29/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2261643A
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US2410149A
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US2706810A
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US2515553A
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US2509381A
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US2572074A
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US2588031A
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US2533543A
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US2615984A
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US2677014A
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US2761060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |