US2451297A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rugged gaseous discharge triodes
Assignee: RCA Corp
•
Filing: 1944-08-01
•
Granted: 1948-10-12
•
Expires: 1964-08-01
Abstract
No abstract record available.
Inventors
- 👤 Arnold R Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:03
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)
US1687898A
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US1921067A
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US1879159A
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US1914534A
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US2141654A
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US2218381A
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US2195913A
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US2242042A
Cited
US2408822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |