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US2777012A
Expired / Lapsed
US
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Multistation remotely-controlled phonographic system
Assignee: Thomas A Edison Inc
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Filing: 1951-12-19
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Granted: 1957-01-08
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Expires: 1971-12-19
Abstract
No abstract record available.
Inventors
- 👤 William W Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:04
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1512719A
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US2066672A
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US1993870A
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US2200351A
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US2284306A
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US2333235A
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US2485381A
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US2497037A
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US2547216A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |