US2951918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic selector for television
Assignee: Individual
•
Filing: 1956-07-16
•
Granted: 1960-09-06
•
Expires: 1976-07-16
Abstract
No abstract record available.
Inventors
- 👤 Arnold M Steffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:24
CPC Classifications
G; G04; G04C; G04C23/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2636981A
Cited
US2045251A
Cited
US2187373A
Cited
US2195642A
Cited
US2389990A
Cited
US2432540A
Cited
US2541257A
Cited
US2650272A
Cited
US2545055A
Cited
US2805331A
Cited
US2755424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |