US2544875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination centering, focusing, and deflecting device for beam of cathode-ray tubes
Assignee: Pye Electronic Products Ltd
•
Filing: 1950-04-15
•
Granted: 1951-03-13
•
Expires: 1970-04-15
Abstract
No abstract record available.
Inventors
- 👤 Bennett Arthur James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:49
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2102421A
Cited
GB464637A
Cited
US2207777A
Cited
US2336837A
Cited
US2234720A
Cited
US2433682A
Cited
US2443025A
Cited
US2456474A
Cited
US2501516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |