Patent US2728027A successfully refreshed from Google Patents.
US2728027A
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US
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Cathode ray deflection systems
Assignee: RCA Corp
•
Filing: 1952-08-12
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Granted: 1955-12-20
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Expires: 1972-08-12
Abstract
No abstract record available.
Inventors
- 👤 Jr William E Scull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:34
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2053537A
Cited
US2098390A
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US2197523A
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US2164555A
Cited
US2253355A
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US2214729A
Cited
FR866058A
Cited
US2395966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |