Patent US2745979A successfully refreshed from Google Patents.
US2745979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun, particularly for cathode ray tubes
Assignee: Hartford National Bank and Trust Co
•
Filing: 1952-10-01
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Granted: 1956-05-15
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Expires: 1972-10-01
Abstract
No abstract record available.
Inventors
- 👤 Aupoix Marcel
- 👤 Droche Elie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:44
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/48; H01J29/485
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2114136A
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US2072957A
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US2170663A
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US2113005A
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US2185807A
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US2202588A
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US2150323A
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US2473547A
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US2443916A
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US2540621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |