Patent US3465196A successfully refreshed from Google Patents.
US2517023A
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US
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Shielding for electric discharge tubes
Assignee: Hartford National Bank and Trust Co
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Filing: 1946-07-08
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Granted: 1950-08-01
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Expires: 1966-07-08
Abstract
No abstract record available.
Inventors
- 👤 Prakke Frits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:14
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/044; H; H01; H01J; H01J5/00; H01J5/02; H01J5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2064184A
Cited
US1128817A
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US1266614A
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US1857645A
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US1802371A
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FR684526A
Cited
US2056637A
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US2250184A
Cited
US2307027A
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US2283090A
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US2400011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |