US2453252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuning control mechanism for radio receivers
Assignee: RCA Corp
•
Filing: 1944-12-05
•
Granted: 1948-11-09
•
Expires: 1964-12-05
Abstract
No abstract record available.
Inventors
- 👤 Newman William Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:09
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/18; H03J7/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2231806A
Cited
US2025218A
Cited
US1911021A
Cited
US2046910A
Cited
US2021476A
Cited
US2100609A
Cited
GB425626A
Cited
US2112687A
Cited
US2174566A
Cited
US2208549A
Cited
US2369542A
Cited
US2262218A
Cited
US2326738A
Cited
US2326737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |