US2809296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching system
Assignee: General Electric Co
•
Filing: 1953-07-14
•
Granted: 1957-10-08
•
Expires: 1973-07-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert Godbarsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:28
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/12; H05; H05G; H05G1/00; H05G1/08; H05G1/26; H05G1/30; H05G1/38; H05G1/42; H05G1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2473922A
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US2003992A
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US2150440A
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US2165048A
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US2282182A
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US2361172A
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US2413020A
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US2401289A
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US2422020A
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US2573029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |