US3070798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for determining the listening habits of wave signal receiver users
Assignee: TNC US Holdings Inc
•
Filing: 1958-06-09
•
Granted: 1962-12-25
•
Expires: 1978-06-09
Abstract
No abstract record available.
Inventors
- 👤 Charles H Currey
- 👤 Brown Arthur Charles Lewis
- 👤 Darrel W Holbrook
- 👤 Gordon K Truesdale
- 👤 Robert L Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:31
CPC Classifications
H; H04; H04H; H04H60/00; H04H60/29; H04H60/32; H04H20/00; H04H20/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2366913A
Cited
US2432944A
Cited
US2434946A
Cited
US2439201A
Cited
US2630366A
Cited
US2678382A
Cited
US2576892A
Cited
US2716702A
Cited
US2674512A
Cited
US2833859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |