Patent FR738569A successfully refreshed from Google Patents.
Patent US2851624A successfully refreshed from Google Patents.
US2851624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube sensitive to images of invisible radiation
Assignee: Individual
•
Filing: 1951-10-12
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Granted: 1958-09-09
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Expires: 1971-10-12
Abstract
No abstract record available.
Inventors
- 👤 Sheldon Edward Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:58
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H01J31/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2544754A
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US2527652A
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US2527632A
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US2544753A
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US2683832A
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US2614235A
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US2645721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |