US2581966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuner
Assignee: Motorola Solutions Inc
•
Filing: 1947-02-14
•
Granted: 1952-01-08
•
Expires: 1967-02-14
Abstract
No abstract record available.
Inventors
- 👤 Donald H Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:41
CPC Classifications
H; H03; H03H; H03H5/00; H03H5/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2042571A
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US2061991A
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US2147425A
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US2206820A
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US2259003A
Cited
US2324178A
Cited
US2370722A
Cited
US2338134A
Cited
US2425454A
Cited
US2474988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |