Patent US2522973A successfully refreshed from Google Patents.
US2522973A
Expired / Lapsed
US
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Push-button ultra high frequency tuner
Assignee: RCA Corp
•
Filing: 1945-01-30
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Granted: 1950-09-19
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Expires: 1965-01-30
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:19
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; H01H13/72; H03; H03J; H03J5/00; H03J5/24; H03J5/26; H03J5/32
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |