US2480059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact terminal for thermionic tubes
Assignee: Individual
•
Filing: 1946-02-01
•
Granted: 1949-08-23
•
Expires: 1966-02-01
Abstract
No abstract record available.
Inventors
- 👤 Fernald S Stickney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:59
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/74; H01R33/76; H01R33/7607; H01R33/7614; H01R33/7628
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1702451A
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US1709452A
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US1750053A
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US2057718A
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FR785118A
Cited
US2127556A
Cited
US2318648A
Cited
US2269122A
Cited
US2369630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |