Patent US2547030A successfully refreshed from Google Patents.
US2547030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
View finder for television cameras
Assignee: Farnsworth Research Corp
•
Filing: 1945-12-01
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Granted: 1951-04-03
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Expires: 1965-12-01
Abstract
No abstract record available.
Inventors
- 👤 Luckock Wayne Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:33
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/50; H04N23/53
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1640694A
Cited
US1813690A
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US2061378A
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US2149455A
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US2048655A
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US2162908A
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US2244687A
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US2165402A
Cited
US2284831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |