US2427737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric discharge device
Assignee: General Electric Co
•
Filing: 1944-07-07
•
Granted: 1947-09-23
•
Expires: 1964-07-07
Abstract
No abstract record available.
Inventors
- 👤 Edward B Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:06
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J2893/00; H01J2893/0064; H01J2893/0065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2050341A
Cited
US1944929A
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US1824452A
Cited
US1954421A
Cited
US2068287A
Cited
DE610004C
Cited
US2064485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-22 | 1951-03-24 | 1951-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-22 | 1955-03-24 | 1955-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-22 | 1959-03-24 | 1959-09-23 | $7700.00 | Window Closed / Lapsed |