US2445678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric discharge device
Assignee: General Electric Co
•
Filing: 1942-02-12
•
Granted: 1948-07-20
•
Expires: 1962-02-12
Abstract
No abstract record available.
Inventors
- 👤 Lemmers Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:19
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/70; H01J17/00; H01J17/38; H01J17/40; H01J17/44; H01J61/02; H01J61/52; H01J2893/00; H01J2893/0064; H01J2893/0065; H01J2893/0068
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1915934A
Cited
US1970223A
Cited
US2165028A
Cited
US2135941A
Cited
US2189321A
Cited
US2185807A
Cited
US2163546A
Cited
US2227829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |