US2855542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beam convergence apparatus for tri-color kinescope
Assignee: RCA Corp
•
Filing: 1955-04-29
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Granted: 1958-10-07
•
Expires: 1975-04-29
Abstract
No abstract record available.
Inventors
- 👤 Otto H Schade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:49
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/28; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/702
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2712092A
Cited
US2713649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |