Patent US3247310A successfully refreshed from Google Patents.
US3247310A
Expired / Lapsed
US
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Musical instrument
Assignee: Chicago Musical Instrument Co
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Filing: 1962-09-13
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Granted: 1966-04-19
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Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Herman Birchard Stinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:24
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/36; G10H1/38; G10H2210/00; G10H2210/155; G10H2210/161; G10H2210/175
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AN ELECTRICAL MUSICAL INSTRUMENT COMPRISING IN COMBINATION: (A) A PLURALITY OF SERIES OF DIFFERENTLY VOICED TONE SIGNAL SOURCES, EACH SERIES HAVING FREQUENCIES COMPRISING A CHROMATIC MUSICAL SCALE; (B) A TRANSLATING SYSTEM FOR CONVERTING TONE SIGNALS INTO AUDIBLE TONES; (C) A SERIES OF SOLO KEYS AND A SERIES OF ACCOMPANIMENT KEYS, EACH MECHANICALLY OPERATIVE TO COUPLE ONE OF SAID TONE SIGNAL SOURCES OF A SELECTED VOICE ELECTRICALLY TO SAID TRANSLATING SYSTEM; AND (D) FILL-IN MEANS RESPONSIVE TO SIMULTANEOUS DEPRESSION OF ANY ONE OF SAID SOLO KEYS AND ONE OR MORE OF SAID ACCOMPANIMENT KEYS, AND OPERATIVE TO ELECTRICALLY COUPLE TO SAID TRANSLATING SYSTEM ONE OR MORE OF SAID TONE SIGNAL SOURCES OF DIFFERENT SELECTED VOICING PITCHED IN THE OCTAVE BELOW SAID ONE SOLO KEY, SAID ONE OR MORE TONE SIGNAL SOURCES BEING THOSE WHICH CORRESPOND IN NAME TO TONES PRODUCED BY SAID DEPRESSED ONE OR MORE ACCOMPANIMENT KEYS.
Claim 2
Dependent Claim
147 words
AN ELECTRICAL MUSICAL INSTRUMENT COMPRISING IN COMBINATION: (A) A PLURALITY OF SERIES OF DIFFERENTLY VOICED TONE SIGNAL SOURCES, EACH SERIES HAVING FREQUENCIES COMPRISING A CHROMATIC MUSICAL SCALE; (B) A TRANSLATING SYSTEM FOR CONVERTING TONE SIGNALS INTO AUDIBLE TONES; (C) A SERIES OF SOLO KEYS AND A SERIES OF ACCOMPANIMENT KEYS, EACH MECHANICALLY OPERATIVE TO COUPLE ONE OF SAID TONE SIGNAL SOURCES OF A SELECTED VOICE ELECTRICALLY TO SAID TRANSLATING SYSTEM; AND (D) FILL-IN MEANS RESPONSIVE TO SIMULTANEOUS DEPRESSION OF ANY ONE OF SAID SOLO KEYS AND ONE OR MORE OF SAID ACCOMPANIMENT KEYS, AND OPERATIVE TO ELECTRICALLY COUPLE TO SAID TRANSLATING SYSTEM ONE OR MORE OF SAID TONE SIGNAL SOURCES OF DIFFERENT SELECTED VOICING PITCHED IN THE OCTAVE BELOW SAID ONE SOLO KEY, SAID ONE OR MORE TONE SIGNAL SOURCES BEING THOSE WHICH CORRESPOND IN NAME TO TONES PRODUCED BY SAID DEPRESSED ONE OR MORE ACCOMPANIMENT KEYS.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |