Patent US2512015A successfully refreshed from Google Patents.
US2512015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for producing sound effects
Assignee: JAMES M SIXSMITH
•
Filing: 1943-10-01
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Granted: 1950-06-20
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Expires: 1963-10-01
Abstract
No abstract record available.
Inventors
- 👤 Rene J Graveel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:56
CPC Classifications
G; G11; G11B; G11B5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB190604825A
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US1366617A
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US1588706A
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US2038647A
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US2105318A
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US2169762A
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US2213246A
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US2251300A
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US2327956A
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US2373560A
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US2350083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |