US2795730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tricolor television picture tube
Assignee: Westinghouse Electric Corp
•
Filing: 1951-11-07
•
Granted: 1957-06-11
•
Expires: 1971-11-07
Abstract
No abstract record available.
Inventors
- 👤 Kenneth N Fromm
- 👤 Miller Theadore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:17
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB474907A
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US2239887A
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GB598545A
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US2461515A
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US2470449A
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US2442961A
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US2476619A
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US2566713A
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US2580073A
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US2704783A
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US2590764A
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US2730644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |