US2463038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current insertion circuit
Assignee: RCA Corp
•
Filing: 1945-03-27
•
Granted: 1949-03-01
•
Expires: 1965-03-27
Abstract
No abstract record available.
Inventors
- 👤 Ray D Kell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:34
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/021; H04; H04N; H04N5/00; H04N5/14; H04N5/16; H04N5/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2182578A
Cited
GB490391A
Cited
US2250293A
Cited
US2215186A
Cited
US2403549A
Cited
US2396023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |