US3002120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beam convergence apparatus for tri-color kinescope
Assignee: RCA Corp
•
Filing: 1954-08-02
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Granted: 1961-09-26
•
Expires: 1974-08-02
Abstract
No abstract record available.
Inventors
- 👤 Burton R Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:02
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/702; H01J2229/00; H01J2229/56; H01J2229/568; H01J2229/5681; H01J2229/5682
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2157182A
Cited
US2500455A
Cited
US2580355A
Cited
US2651000A
Cited
US2574039A
Cited
US2677779A
Cited
US2743389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |