US2562243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun structure
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1950-06-06
•
Granted: 1951-07-31
•
Expires: 1970-06-06
Abstract
No abstract record available.
Inventors
- 👤 Pohle Eric
- 👤 Robert G Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:51
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2423924A
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US2393057A
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US2436264A
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US2544934A
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US2525737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |