US2995682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching circuit for use with electroluminescent display devices
Assignee: GTE Sylvania Inc
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Filing: 1960-01-28
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Granted: 1961-08-08
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Expires: 1980-01-28
Abstract
No abstract record available.
Inventors
- 👤 Donald C Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:15
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/30; H; H04; H04N; H04N3/00; H04N3/10; H04N3/14; H05; H05B; H05B44/00; G09G2310/00; G09G2310/02; G09G2310/0264; G09G2310/0267; G09G2310/0275; Y; Y02; Y02B; Y02B20/00; Y02B20/30
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) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |