US2685680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic vehicle detector
Assignee: Automatic Telephone and Electric Co Ltd
•
Filing: 1948-11-18
•
Granted: 1954-08-03
•
Expires: 1968-11-18
Abstract
No abstract record available.
Inventors
- 👤 Williams Merrel Omer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:58
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/01; G08G1/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2051369A
Cited
US1959690A
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US2027311A
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US2034881A
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US2132277A
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US2321618A
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US2406870A
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US2434273A
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US2387544A
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US2456463A
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US2441568A
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US2531313A
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US2450166A
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US2409610A
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US2437661A
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US2492182A
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US2505511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |