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US2958766A
Expired / Lapsed
US
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Automatic audience rating systems
Assignee: TNC US Holdings Inc
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Filing: 1956-11-26
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Granted: 1960-11-01
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Expires: 1976-11-26
Abstract
No abstract record available.
Inventors
- 👤 Evans Chauncey Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
H; H04; H04H; H04H60/00; H04H60/56; H04H60/58; H04H60/35; H04H60/38; H04H60/41; H04H60/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2662168A
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US2513360A
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US2760008A
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US2773981A
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US2773980A
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US2766374A
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US2716702A
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US2784263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |