Patent US2652258A successfully refreshed from Google Patents.
US2652258A
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US
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Phonograph
Assignee: WEBSTER CHICAGO CORP
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Filing: 1951-04-13
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Granted: 1953-09-15
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Expires: 1971-04-13
Abstract
No abstract record available.
Inventors
- 👤 Colin B Dale
- 👤 Arne L Berg
- 👤 Harry H Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:37
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/08; G11B17/12; G11B17/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1966576A
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GB419299A
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GB429635A
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US2333414A
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US2328641A
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US2339981A
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US2396094A
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US2486898A
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US2457106A
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US2509811A
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US2584257A
Cited
US2549246A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |