US2760182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for detecting the movement of objects of magnetic material
Assignee: British Telecommunications PLC
•
Filing: 1952-02-18
•
Granted: 1956-08-21
•
Expires: 1972-02-18
Abstract
No abstract record available.
Inventors
- 👤 Adolf W Rechten
- 👤 Brian M Bellman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:29
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/01; G08G1/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US634388A
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US1798256A
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US2064882A
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US1962236A
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US2144535A
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US2179240A
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US2228293A
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US2228294A
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GB526805A
Cited
FR992445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |