US3090272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamically keyed musical instrument
Assignee: Individual
•
Filing: 1960-03-16
•
Granted: 1963-05-21
•
Expires: 1980-03-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Melville Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:57
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN AN ELECTRICAL MUSICAL INSTRUMENT,THE COMBINATION COMPRISING FIRST AND SECOND MOVABLE PARTS, A PLAYING KEY OPERATIVELY CONNECTED TO MOVE SAID FIRST PART, SAID SECOND PART NORMALLY RESTING AGAINST SAID FIRST PART SO THAT MOVEMENT OF THE FIRST BY SAID KEY CAUSES SAID SECOND PART TO MOVE AWAY FROM ITS NORMALLY RESTING POSITION AGAINST SAID FIRST PART A DISTANCE THAT VARIES DEPENDING UPON THE SPEED OF OPERATION OF SAID KEY, AND TONE GENERATOR MEANS CONNECTED TO SAID SECOND PART FOR GENERATING AN
Claim 2
Dependent Claim
81 words
IN AN ELECTRICAL MUSICAL INSTRUMENT,THE COMBINATION COMPRISING FIRST AND SECOND MOVABLE PARTS, A PLAYING KEY OPERATIVELY CONNECTED TO MOVE SAID FIRST PART, SAID SECOND PART NORMALLY RESTING AGAINST SAID FIRST PART SO THAT MOVEMENT OF THE FIRST BY SAID KEY CAUSES SAID SECOND PART TO MOVE AWAY FROM ITS NORMALLY RESTING POSITION AGAINST SAID FIRST PART A DISTANCE THAT VARIES DEPENDING UPON THE SPEED OF OPERATION OF SAID KEY, AND TONE GENERATOR MEANS CONNECTED TO SAID SECOND PART FOR GENERATING AN
References Cited (Backward Citations)
US1156321A
Cited
US1977598A
Cited
US2030248A
Cited
US2463597A
Cited
US2497331A
Cited
US2933004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |