Patent US2836753A successfully refreshed from Google Patents.
US2836753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dark trace cathode-ray tubes and screens therefor
Assignee: White Consolidated Industries Inc
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Filing: 1954-03-25
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Granted: 1958-05-27
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Expires: 1974-03-25
Abstract
No abstract record available.
Inventors
- 👤 Hodowanec Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:57
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/14; H01J31/00; H01J31/08; H01J31/49; H01J31/58; H01J31/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2535817A
Cited
US2665220A
Cited
US2615821A
Cited
US2673816A
Cited
US2616057A
Cited
US2661437A
Cited
US2676113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |