US2566759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency tuner
Assignee: Motorola Solutions Inc
•
Filing: 1948-08-03
•
Granted: 1951-09-04
•
Expires: 1968-08-03
Abstract
No abstract record available.
Inventors
- 👤 James M Clark
- 👤 William H Counts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:18
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2109843A
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US2132208A
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US2284379A
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US2351895A
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US2438912A
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US2427107A
Cited
US2496322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |