Patent US3267200A successfully refreshed from Google Patents.
US3267200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic musical instrument having an attack circuit
Assignee: Chicago Musical Instrument Co
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Filing: 1963-04-05
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Granted: 1966-08-16
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Expires: 1983-04-05
Abstract
No abstract record available.
Inventors
- 👤 Walter J Anderson
- 👤 Robert M Grodinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:16
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/053; G10H1/057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN ATTACK CIRCUIT FOR AN ELECTRONIC MUSICAL INSTRUMENT INCLUDING A SERIES OF SIGNAL SOURCES HAVING READOUT ELEMENTS CONNECTED TO A COMMON OUTPUT BUS, AND A SERIES ON KEY SWITCHES OPERATIVE TO APPLY A COUPLING POTENTIAL ON THE READOUT ELEMENTS, SAID CIRCUIT COMPRISING: (A) A PULSE BUS HAVING CAPACITIVE CONNECTIONS WITH THE READOUT ELEMENTS; AND AND A NORMALLY NON-CONDUCTING PLATE CIRCUIT UNDER THE CONTROL OF SAID GRID, SAID PLATE CIRCUIT BEING CONNECTED ACROSS THE SOURCE OF COUPLING POTENTIAL.
Claim 2
Dependent Claim
77 words
AN ATTACK CIRCUIT FOR AN ELECTRONIC MUSICAL INSTRUMENT INCLUDING A SERIES OF SIGNAL SOURCES HAVING READOUT ELEMENTS CONNECTED TO A COMMON OUTPUT BUS, AND A SERIES ON KEY SWITCHES OPERATIVE TO APPLY A COUPLING POTENTIAL ON THE READOUT ELEMENTS, SAID CIRCUIT COMPRISING: (A) A PULSE BUS HAVING CAPACITIVE CONNECTIONS WITH THE READOUT ELEMENTS; AND AND A NORMALLY NON-CONDUCTING PLATE CIRCUIT UNDER THE CONTROL OF SAID GRID, SAID PLATE CIRCUIT BEING CONNECTED ACROSS THE SOURCE OF COUPLING POTENTIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |