US3023336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube having post acceleration
Assignee: Tektronix Inc
•
Filing: 1957-10-25
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Granted: 1962-02-27
•
Expires: 1977-10-25
Abstract
No abstract record available.
Inventors
- 👤 Frenkel Lothar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:50
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2289906A
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US2498354A
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US2545120A
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US2587074A
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US2696571A
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US2689926A
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US2892962A
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US2827592A
Cited
GB876915A
Cited
US2944174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |