US2859378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode system for cathode ray tubes
Assignee: General Electric Co
•
Filing: 1956-05-21
•
Granted: 1958-11-04
•
Expires: 1976-05-21
Abstract
No abstract record available.
Inventors
- 👤 Gundert Eberhard
- 👤 Vibrans Gerwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:16
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/20; H01J29/00; H01J29/46; H01J29/48; H01J29/51
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2225479A
Cited
US2457175A
Cited
US2521426A
Cited
US2672574A
Cited
US2679614A
Cited
US2690517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |