Patent EP0192949A1 successfully refreshed from Google Patents.
US2837641A
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US
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Radio frequency actuated transfer relay
Assignee: International Business Machines Corp
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Filing: 1953-10-01
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Granted: 1958-06-03
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Expires: 1973-10-01
Abstract
No abstract record available.
Inventors
- 👤 Geisler Helmut John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:20
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/498; G06F7/4983; G06F7/4985; G06F5/00; G06F5/01; G06F5/015; H; H01; H01J; H01J17/00; H01J17/38; H01J17/40; H01J17/44; H03; H03K; H03K17/00; H03K17/51; H03K17/52; H03K17/54; H01J2893/00; H01J2893/0064; H01J2893/0065; H01J2893/0068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2304015A
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US2414541A
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US2498720A
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US2577141A
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US2631232A
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US2655605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |