US2829303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam controlling apparatus
Assignee: RCA Corp
•
Filing: 1954-11-01
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Granted: 1958-04-01
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Expires: 1974-11-01
Abstract
No abstract record available.
Inventors
- 👤 Ronald C Knechtli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:56
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/22; H04N3/23; H04N3/233; H01J2229/00; H01J2229/96; H01J2229/964
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2178093A
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US2176973A
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US2454378A
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US2574946A
Cited
US2591738A
Cited
US2656486A
Cited
US2664521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |