Patent US2101009A successfully refreshed from Google Patents.
US2101009A
Expired / Lapsed
US
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Radio tuning apparatus
Assignee: Motorola Solutions Inc
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Filing: 1935-06-24
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Granted: 1937-11-30
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Expires: 1955-06-24
Abstract
No abstract record available.
Inventors
- 👤 Donald H Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:58
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/06; H03J1/063; Y; Y10; Y10S; Y10S70/00; Y10S70/30; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/5805; Y10T70/5819; Y10T74/00; Y10T74/19; Y10T74/1956; Y10T74/19565; Y10T74/1957
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-11-29 | 1941-05-31 | 1941-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-11-29 | 1945-05-31 | 1945-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-11-29 | 1949-05-31 | 1949-11-30 | $7700.00 | Window Closed / Lapsed |