US2642547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device of the kind comprising an electronic tube having a ribbonshaped beam which is deflected and held in different positions
Assignee: Hartford National Bank and Trust Co
•
Filing: 1951-11-21
•
Granted: 1953-06-16
•
Expires: 1971-11-21
Abstract
No abstract record available.
Inventors
- 👤 Rodenhuis Klaas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:16
CPC Classifications
H; H03; H03K; H03K29/00; H01; H01J; H01J19/00; H01J21/00; H01J21/02; H01J31/00; H01J31/02; H01J31/04; H01J2893/00; H01J2893/0001; H01J2893/001
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |