US2821671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflection yoke
Assignee: RCA Corp
•
Filing: 1953-03-18
•
Granted: 1958-01-28
•
Expires: 1973-03-18
Abstract
No abstract record available.
Inventors
- 👤 Jerrold K Kratz
- 👤 Maximilian J Obert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:42
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76; H01J29/762; H01J2229/00; H01J2229/70; H01J2229/703; H01J2229/7031
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2207777A
Cited
US2428947A
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GB654545A
Cited
US2565331A
Cited
US2570425A
Cited
US2771563A
Cited
US2605433A
Cited
US2611003A
Cited
US2692355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |