US2467734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shading compensating mosaic screen electrode
Assignee: Farnsworth Research Corp
•
Filing: 1945-04-12
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Granted: 1949-04-19
•
Expires: 1965-04-12
Abstract
No abstract record available.
Inventors
- 👤 Sanford F Essig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:28
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/021; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24488
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2341827A
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US1969558A
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US2121356A
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US2175691A
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US2238381A
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US2251992A
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US2285058A
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US2384209A
Cited
US2282123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |