US859165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound-conveying tube for talking-machines.
Assignee: Individual
•
Filing: 1905-10-07
•
Granted: 1907-07-02
•
Expires: 1925-10-07
Abstract
No abstract record available.
Inventors
- 👤 Robert A Boswell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:55
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1910-07-01 | 1910-12-31 | 1911-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-07-01 | 1914-12-31 | 1915-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-07-01 | 1918-12-31 | 1919-07-02 | $7700.00 | Window Closed / Lapsed |