Patent US2832889A successfully refreshed from Google Patents.
US2832889A
Expired / Lapsed
US
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Signal seeking radio control
Assignee: Motors Liquidation Co
•
Filing: 1953-11-17
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Granted: 1958-04-29
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Expires: 1973-11-17
Abstract
No abstract record available.
Inventors
- 👤 William R Kearney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:51
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/18; H03J7/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2192313A
Cited
US2174566A
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US2321699A
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US2316899A
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US2501003A
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US2744193A
Cited
US2751503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |