US2431646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selector for automatic phonographs
Assignee: J P SEEBURG Corp
•
Filing: 1944-02-28
•
Granted: 1947-11-25
•
Expires: 1964-02-28
Abstract
No abstract record available.
Inventors
- 👤 Mahlon W Kenney
- 👤 Hugh H Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:59
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2303918A
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GB312196A
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US2080100A
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US2206550A
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US2313136A
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US2298447A
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US2304590A
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US2215892A
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US2233026A
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US2307965A
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US2342652A
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US2362827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |