Patent US2863018A successfully refreshed from Google Patents.
US2863018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnet relays and to apparatus incorporating such relays
Assignee: Telephone Manufacturing Co Ltd
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Filing: 1955-09-06
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Granted: 1958-12-02
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Expires: 1975-09-06
Abstract
No abstract record available.
Inventors
- 👤 Rommel Frederick Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:06
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1969488A
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US2077091A
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US2282687A
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US2326054A
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US2611012A
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GB626796A
Cited
US2616993A
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US2665352A
Cited
US2630500A
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US2762866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |