US489564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key-touch adjuster for pianofortes
Assignee: —
•
Filing: —
•
Granted: 1893-01-10
•
Expires: 1910-01-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:39
CPC Classifications
G; G10; G10C; G10C3/00; G10C3/12
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) | 1896-01-10 | 1896-07-11 | 1897-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1900-01-10 | 1900-07-12 | 1901-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1904-01-11 | 1904-07-12 | 1905-01-11 | $7700.00 | Window Closed / Lapsed |