Patent US2516069A successfully refreshed from Google Patents.
US2516069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Observer-controlled television system
Assignee: AT&T Inc
•
Filing: 1947-07-29
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Granted: 1950-07-18
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Expires: 1967-07-29
Abstract
No abstract record available.
Inventors
- 👤 Russell C Newhouse
- 👤 Frederick W Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:26
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/60; H04N23/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1450966A
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US2183725A
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US2424569A
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US2306862A
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US2417446A
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US2403023A
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US2416562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |