US2766407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube deflection systems
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1951-12-27
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Granted: 1956-10-09
•
Expires: 1971-12-27
Abstract
No abstract record available.
Inventors
- 👤 Emil E Sanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:15
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76; H01J29/762
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2074764A
Cited
US2108523A
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US2207777A
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US2236498A
Cited
US2428947A
Cited
US2616056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |