US2630366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for determining the audience response to programs broadcast from wave signal transmitting stations
Assignee: TNC US Holdings Inc
•
Filing: 1946-11-09
•
Granted: 1953-03-03
•
Expires: 1966-11-09
Abstract
No abstract record available.
Inventors
- 👤 Henry A Rahmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:30
CPC Classifications
H; H04; H04H; H04H60/00; H04H60/56; H04H60/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1889597A
Cited
US1934879A
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US2176742A
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US2213886A
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US2354836A
Cited
US2405238A
Cited
US2397830A
Cited
US2432214A
Cited
US2436235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |