US2613330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode-ray image converter tube
Assignee: Hartford National Bank and Trust Co
•
Filing: 1950-11-04
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Granted: 1952-10-07
•
Expires: 1970-11-04
Abstract
No abstract record available.
Inventors
- 👤 Bruining Hajo
- 👤 Schagen Pieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:58
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; G; G02; G02B; G02B27/00; G02B27/32; H01J2231/00; H01J2231/50; H01J2231/50005; H01J2231/5001; H01J2231/50015; H01J2231/50026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2151785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |