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US2651004A
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US
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Electronic counting and/or selecting arrangement
Assignee: Ericsson Telephones Ltd
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Filing: 1951-06-20
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Granted: 1953-09-01
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Expires: 1971-06-20
Abstract
No abstract record available.
Inventors
- 👤 Acton John Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:10
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J2893/00; H01J2893/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |