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US960665A
Expired / Lapsed
US
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Piano attachment for giving mandolin effects.
Assignee: Individual
•
Filing: 1909-11-01
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Granted: 1910-06-07
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Expires: 1929-11-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph Metzger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:42
CPC Classifications
G; G10; G10F; G10F1/00; G10F1/02
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) | 1913-06-06 | 1913-12-06 | 1914-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-06-06 | 1917-12-06 | 1918-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-06-06 | 1921-12-06 | 1922-06-07 | $7700.00 | Window Closed / Lapsed |