Patent US1708558A successfully refreshed from Google Patents.
US2972073A
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US
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Electron beam controlling apparatus
Assignee: RCA Corp
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Filing: 1955-08-31
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Granted: 1961-02-14
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Expires: 1975-08-31
Abstract
No abstract record available.
Inventors
- 👤 Burton R Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:18
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/702; H01J29/703
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2258643A
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US2442975A
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US2416687A
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US2459732A
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US2541446A
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US2816244A
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US2825835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |