Patent US2974282A successfully refreshed from Google Patents.
US2974282A
Expired / Lapsed
US
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Device for representing a voltage in the shape of a code
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1955-06-01
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Granted: 1961-03-07
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Expires: 1975-06-01
Abstract
No abstract record available.
Inventors
- 👤 Scheftelowitz Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:46
CPC Classifications
H; H03; H03M; H03M1/00; G; G01; G01R; G01R19/00; G01R19/25; G01R19/255; G05; G05D; G05D3/00; G05D3/12; G05D3/20; H04; H04Q; H04Q1/00; H04Q1/18; H04Q1/30; H04Q1/39; H03M1/06; H03M1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2497961A
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US2529666A
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US2632147A
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US2717994A
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US2676253A
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US2722660A
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US2840806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |