US2694577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound recording and reproducing device
Assignee: Individual
•
Filing: 1951-02-23
•
Granted: 1954-11-16
•
Expires: 1971-02-23
Abstract
No abstract record available.
Inventors
- 👤 Ninni Italo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:16
CPC Classifications
G; G11; G11B; G11B25/00; G11B25/08; G11B3/00; G11B3/02; G11B5/00; G11B5/48; G11B5/52; G11B5/53
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2555643A
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US2542590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |