Patent US3051881A successfully refreshed from Google Patents.
US3051881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Channel selector servo circuit
Assignee: TDK Micronas GmbH
•
Filing: 1960-07-08
•
Granted: 1962-08-28
•
Expires: 1980-07-08
Abstract
No abstract record available.
Inventors
- 👤 Jean A Baudin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:34
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/18; H03J1/187; H03J5/00; H03J5/24; H03J5/248
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2020275A
Cited
US2455364A
Cited
US2511863A
Cited
US2446532A
Cited
US2561654A
Cited
US2715703A
Cited
US2848670A
Cited
US2943249A
Cited
US2939061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |