US724435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound-box for sound recording and reproducing machines.
Assignee: Individual
•
Filing: 1902-04-16
•
Granted: 1903-04-07
•
Expires: 1922-04-16
Abstract
No abstract record available.
Inventors
- 👤 George K Cheney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:18
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/44; G11B3/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1906-04-06 | 1906-10-06 | 1907-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-04-06 | 1910-10-06 | 1911-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-04-06 | 1914-10-06 | 1915-04-07 | $7700.00 | Window Closed / Lapsed |