US2424518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil electrode
Assignee: General Electric Co
•
Filing: 1944-12-04
•
Granted: 1947-07-22
•
Expires: 1964-12-04
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:38
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/15; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49881
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1161822A
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US1603087A
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FR623953A
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US1869559A
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US1998958A
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US2135726A
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US2145186A
Cited
US2218346A
Cited
GB537717A
Cited
US2243849A
Cited
US2258158A
Cited
US2312245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-21 | 1951-01-20 | 1951-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-21 | 1955-01-20 | 1955-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-21 | 1959-01-20 | 1959-07-22 | $7700.00 | Window Closed / Lapsed |