US2714642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed relay of electromechanical transducer material
Assignee: AT&T Inc
•
Filing: 1952-07-10
•
Granted: 1955-08-02
•
Expires: 1972-07-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Kinsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:28
CPC Classifications
H; H01; H01H; H01H57/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1159189A
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US1845998A
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US1967359A
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GB324008A
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US2166763A
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US2167254A
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CH213673A
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US2387108A
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US2391668A
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US2497108A
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US2502727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-01 | 1959-01-31 | 1959-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-01 | 1963-01-31 | 1963-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-01 | 1967-01-31 | 1967-08-02 | $7700.00 | Window Closed / Lapsed |