US2597298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beam centering device for cathoderay tubes
Assignee: Pye Electronic Products Ltd
•
Filing: 1950-02-17
•
Granted: 1952-05-20
•
Expires: 1970-02-17
Abstract
No abstract record available.
Inventors
- 👤 Court Patrick Richard James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:17
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/54
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2188579A
Cited
US2224933A
Cited
US2102421A
Cited
GB464637A
Cited
US2195470A
Cited
US2456474A
Cited
US2498354A
Cited
US2455977A
Cited
US2513929A
Cited
US2525919A
Cited
US2544898A
Cited
US2544875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |