US2866371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key and action assembly for musical instruments
Assignee: PRATT READ AND CO Inc
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Filing: 1956-04-30
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Granted: 1958-12-30
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Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Stein Charles Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:49
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/12; F16B35/00; F16B35/04; F16B35/041; F16B35/048; F16B37/00; F16B37/04; F16B37/06; F16B37/062; F16B37/065; G; G10; G10C; G10C3/00; G10C3/16; G10C3/18; G10C3/22; G10C3/24
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |