Patent US2474527A successfully refreshed from Google Patents.
US2474527A
Expired / Lapsed
US
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Remote-control system
Assignee: LORAIN COUTY RADIO Corp
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Filing: 1945-05-09
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Granted: 1949-06-28
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Expires: 1965-05-09
Abstract
No abstract record available.
Inventors
- 👤 Donald A Heisner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:21
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1530169A
Cited
US2369542A
Cited
US2270917A
Cited
US2280019A
Cited
US2320996A
Cited
US2286396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |