Patent US3031597A successfully refreshed from Google Patents.
US3031597A
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Information storage display tube and storage screen assembly therefor
Assignee: TDK Micronas GmbH
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Filing: 1957-12-18
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Granted: 1962-04-24
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Expires: 1977-12-18
Abstract
No abstract record available.
Inventors
- 👤 Dean W Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:47
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/18; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/395
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2118186A
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US2240186A
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FR886457A
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US2507958A
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GB634318A
Cited
US2857551A
Cited
US2843799A
Cited
US2824249A
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US2790929A
Cited
US2887597A
Cited
US2873398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |