US2698400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generator for dynamic focusing of cathode ray tubes
Assignee: GTE Sylvania Inc
•
Filing: 1948-09-21
•
Granted: 1954-12-28
•
Expires: 1968-09-21
Abstract
No abstract record available.
Inventors
- 👤 William F Schreiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:38
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/26; H01; H01J; H01J29/00; H01J29/46; H01J29/58; H01J29/62
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2210995A
Cited
US2105902A
Cited
US2255485A
Cited
US2269001A
Cited
US2291682A
Cited
US2248581A
Cited
US2453711A
Cited
US2455373A
Cited
US2462109A
Cited
US2476978A
Cited
US2430331A
Cited
US2462078A
Cited
US2461144A
Cited
US2447804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |