Patent US2651368A successfully refreshed from Google Patents.
US2901649A
Expired / Lapsed
US
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Image storage screens and method of making same
Assignee: TDK Micronas GmbH
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Filing: 1953-06-15
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Granted: 1959-08-25
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Expires: 1973-06-15
Abstract
No abstract record available.
Inventors
- 👤 Albert J Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:47
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/023; H01J29/10; H01J29/36; H01J29/39; H01J29/395; H01J31/00; H01J31/08; H01J31/50; H01J31/506; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24; H01J9/00; H01J9/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1786154A
Cited
US2261154A
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US2491761A
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US2506604A
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US2572497A
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US2596617A
Cited
US2739907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |