US2653243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic tuning of resonant circuits
Assignee: Westinghouse Electric Corp
•
Filing: 1948-08-17
•
Granted: 1953-09-22
•
Expires: 1968-08-17
Abstract
No abstract record available.
Inventors
- 👤 Cyril E Mcclellan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:09
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/02; H03J7/16; H04; H04L; H04L27/00; H04L27/10; H04L27/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1780669A
Cited
US2287925A
Cited
US2483409A
Cited
US2449923A
Cited
US2456763A
Cited
US2501368A
Cited
US2415799A
Cited
US2466931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |