US2435316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical focusing means for image translating devices
Assignee: Farnsworth Research Corp
•
Filing: 1943-11-01
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Granted: 1948-02-03
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Expires: 1963-11-01
Abstract
No abstract record available.
Inventors
- 👤 Christian C Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:21
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/26; H01J31/42; H01J31/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2275234A
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US2295779A
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US2319061A
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US2298808A
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US2295802A
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US2305855A
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US2336134A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-02 | 1951-08-04 | 1952-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-02 | 1955-08-04 | 1956-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-02 | 1959-08-04 | 1960-02-03 | $7700.00 | Window Closed / Lapsed |