US2547638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image storage tube
Assignee: Raytheon Co
•
Filing: 1948-12-18
•
Granted: 1951-04-03
•
Expires: 1968-12-18
Abstract
No abstract record available.
Inventors
- 👤 Bernard C Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:37
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/58; H01J31/60; H01J31/62; H01J31/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2215199A
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US2245364A
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US2280191A
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US2464420A
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US2460093A
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US2507958A
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US2501637A
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US2462569A
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US2506742A
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US2503949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |