Patent US2741702A successfully refreshed from Google Patents.
US2741702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic tuning system for transmitters and receivers
Assignee: Individual
•
Filing: 1952-02-09
•
Granted: 1956-04-10
•
Expires: 1972-02-09
Abstract
No abstract record available.
Inventors
- 👤 Keen Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:50
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/12; H; H03; H03J; H03J3/00; H03J3/02; H03J3/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US798286A
Cited
US1403569A
Cited
US1561722A
Cited
US1965751A
Cited
US2053668A
Cited
US2044645A
Cited
US2082430A
Cited
US2304871A
Cited
US2246923A
Cited
US2444391A
Cited
US2488122A
Cited
US2528489A
Cited
US2584578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |