Patent US2958766A successfully refreshed from Google Patents.
US2958766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic audience rating systems
Assignee: TNC US Holdings Inc
•
Filing: 1956-11-26
•
Granted: 1960-11-01
•
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 17:16
CPC Classifications
H; H04; H04H; H04H60/00; H04H60/56; H04H60/58; H04H60/35; H04H60/38; H04H60/41; H04H60/44
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1739520A
Cited
US2111765A
Cited
US2373180A
Cited
US2630366A
Cited
US2662168A
Cited
US2513360A
Cited
US2760008A
Cited
US2788441A
Cited
US2773981A
Cited
US2773980A
Cited
US2766374A
Cited
US2716702A
Cited
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 |