Patent FR1047916A successfully refreshed from Google Patents.
US2486065A
Expired / Lapsed
US
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Lead-in structure for vacuum tubes
Assignee: Societe Francaise Radio Electrique
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Filing: 1946-07-16
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Granted: 1949-10-25
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Expires: 1966-07-16
Abstract
No abstract record available.
Inventors
- 👤 Saucet Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:28
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/32; H01J5/44; H01J5/20; H01J5/22; H01J5/26; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0041; H01J2893/0043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1976391A
Cited
US2037231A
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US2030187A
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US2203249A
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US2395043A
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US2339402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |