US3263550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keyboard assembly for a musical instrument
Assignee: Individual
•
Filing: 1964-07-10
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Granted: 1966-08-02
•
Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Peter S Proll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:20
CPC Classifications
G; G10; G10B; G10B3/00; G10B3/10; G10D; G10D11/00; G10D11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A KEYBOARD ASSEMBLY FOR A MUSICAL INSTRUMENT COMPRISING: (A) A KEY, (B) AN INTEGRAL STOP ON THE KEY, (C) A SUPPORT FOR THE STOP HAVING AN AIRHOLE, (D) THE KEY AND STOP, DEFINING A PIVOTABLE AIR-CONTROL ASSEMBLY, ARRANGED TOGETHER ON THE SUPPORT, WITH THE STOP AGAINST THE AIRHOLE, (E) A SPRING ATTACHED TO AND INTEGRAL WITH THE AIRCONTROL ASSEMBLY AND NORMALLY URGING THE STOP AGAINST THE AIRHOLE, (F) THE AIR-CONTROL ASSEMBLY BEING DIMENSIONED AS TO
Claim 2
Dependent Claim
75 words
A KEYBOARD ASSEMBLY FOR A MUSICAL INSTRUMENT COMPRISING: (A) A KEY, (B) AN INTEGRAL STOP ON THE KEY, (C) A SUPPORT FOR THE STOP HAVING AN AIRHOLE, (D) THE KEY AND STOP, DEFINING A PIVOTABLE AIR-CONTROL ASSEMBLY, ARRANGED TOGETHER ON THE SUPPORT, WITH THE STOP AGAINST THE AIRHOLE, (E) A SPRING ATTACHED TO AND INTEGRAL WITH THE AIRCONTROL ASSEMBLY AND NORMALLY URGING THE STOP AGAINST THE AIRHOLE, (F) THE AIR-CONTROL ASSEMBLY BEING DIMENSIONED AS TO
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |