Patent US2453003A successfully refreshed from Google Patents.
US2453003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television projection tube
Assignee: Pye Electronic Products Ltd
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Filing: 1947-03-20
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Granted: 1948-11-02
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Expires: 1967-03-20
Abstract
No abstract record available.
Inventors
- 👤 Edwards Baden John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:19
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/64; H04N5/645; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/894
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2027386A
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AU2386635A
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GB487241A
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GB463891A
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FR841458A
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US2241974A
Cited
US2273801A
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US2305855A
Cited
GB557771A
Cited
US2415211A
Cited
GB617226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |