US2551068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coded-sound, television receiver
Assignee: Zenith Electronics LLC
•
Filing: 1948-10-05
•
Granted: 1951-05-01
•
Expires: 1968-10-05
Abstract
No abstract record available.
Inventors
- 👤 George O Striker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:06
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/167
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1754876A
Cited
US2462061A
Cited
US2405252A
Cited
GB564511A
Cited
US2414101A
Cited
US2419568A
Cited
US2502213A
Cited
US2477625A
Cited
US2477679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |