Patent CH64125A successfully refreshed from Google Patents.
US2568166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television image superimposition
Assignee: Individual
•
Filing: 1948-04-23
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Granted: 1951-09-18
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Expires: 1968-04-23
Abstract
No abstract record available.
Inventors
- 👤 Perry David Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:03
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/262; H04N5/2624
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2073370A
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US2164297A
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US2244239A
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US2240420A
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US2349687A
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US2399586A
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US2490561A
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US2464253A
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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) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |