US2678020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visible radio tuning device
Assignee: Individual
•
Filing: 1949-04-15
•
Granted: 1954-05-11
•
Expires: 1969-04-15
Abstract
No abstract record available.
Inventors
- 👤 Clemens O Jaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:26
CPC Classifications
H; H03; H03J; H03J5/00; H03J5/02; H03J5/04; H03J5/06; Y; Y10; Y10S; Y10S116/00; Y10S116/23; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1834272A
Cited
US1977397A
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US2069627A
Cited
US2184965A
Cited
US2182572A
Cited
US2186099A
Cited
US2310303A
Cited
US2381227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |