US2434704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric space discharge circuits
Assignee: RCA Corp
•
Filing: 1944-03-20
•
Granted: 1948-01-20
•
Expires: 1964-03-20
Abstract
No abstract record available.
Inventors
- 👤 Fred H Kroger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:31
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2280824A
Cited
US2257795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-19 | 1951-07-21 | 1952-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-19 | 1955-07-21 | 1956-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-19 | 1959-07-21 | 1960-01-20 | $7700.00 | Window Closed / Lapsed |