US2434895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron discharge device
Assignee: International Standard Electric Corp
•
Filing: 1943-05-01
•
Granted: 1948-01-27
•
Expires: 1963-05-01
Abstract
No abstract record available.
Inventors
- 👤 Arditi Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:37
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2227062A
Cited
US2159568A
Cited
US2163270A
Cited
US2264709A
Cited
US2199540A
Cited
US2203225A
Cited
US2260313A
Cited
US2213175A
Cited
US2256462A
Cited
US2372422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-26 | 1951-07-28 | 1952-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-26 | 1955-07-28 | 1956-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-26 | 1959-07-28 | 1960-01-27 | $7700.00 | Window Closed / Lapsed |