Patent US2963608A successfully refreshed from Google Patents.
US2963608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube structure
Assignee: GTE Sylvania Inc
•
Filing: 1957-08-07
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Granted: 1960-12-06
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Expires: 1977-08-07
Abstract
No abstract record available.
Inventors
- 👤 Benda David
- 👤 Glen A Burdick
- 👤 George R Kautz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:40
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/48; H01J29/484
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2141414A
Cited
US2449090A
Cited
US2456474A
Cited
US2518121A
Cited
DE893235C
Cited
US2777969A
Cited
US2832911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |