US2429406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio control apparatus
Assignee: BELMONT RADIO Corp
•
Filing: 1940-02-26
•
Granted: 1947-10-21
•
Expires: 1960-02-26
Abstract
No abstract record available.
Inventors
- 👤 William L Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:50
CPC Classifications
H; H03; H03J; H03J5/00; H03J5/02; H03J5/04; H03J5/12; H01; H01H; H01H9/00; H01H9/20; H01H9/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1070538A
Cited
US1948473A
Cited
US2275369A
Cited
GB510186A
Cited
US2273499A
Cited
US2307285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-20 | 1951-04-21 | 1951-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-20 | 1955-04-21 | 1955-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-20 | 1959-04-21 | 1959-10-21 | $7700.00 | Window Closed / Lapsed |