US3098407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tone filters
Assignee: Wurlitzer Co
•
Filing: 1960-06-20
•
Granted: 1963-07-23
•
Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 John R Brand
- 👤 Joseph H Hearne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:36
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/06; G10H1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A TONE PRODUCING SYSTEM FOR A ELECTRONIC MUSICAL INSTRUMENT CONPRISING A PLURALITY OF GENERATORS CORRESPONDING TO THE NOTES OF SUCH A MUSCIAL INSTRUMENT AND EACH PRODUCING A COMPLEX ELECTRICAL OSCILLATION, MEANS CONNECTING SAID GENERATORS IN GROUPS OF SEQUENTIAL TONES, A PLURALITY OF TONE FILTERS EACH TUNED TO PASS THE FUNDAMENTALS OF A CORRESPONDING GROUP OF GENERATORS AND TO DISCRIMINATE AGAINST THE HARMONICS THEREOF, MEANS RESPECTIVELY CONNECTING SAID GROUPS OF GENERATORS TO SAID FILTER, AMPLIFIER MEANS CONNECTED TO SAID FILTERS, ELECTRO-ACOUSTIC TRANSLATING MEANS CONNECTED TO SAID AMPLIFIER MEANS FOR CONVERTING THE AMPLIFIED OSCILLATIONS INTO AUDIBLE MUSICAL TONES, PLAYING KEY OPERATED MEANS INTERCONNECTED WITH SAID GENERATORS FOR SELECTIVELY RENDERING SAID GENERATORS EFFECTIVE, A COMMON COLLECTOR, MEANS CONNECTING ALL OF
Claim 2
Dependent Claim
117 words
A TONE PRODUCING SYSTEM FOR A ELECTRONIC MUSICAL INSTRUMENT CONPRISING A PLURALITY OF GENERATORS CORRESPONDING TO THE NOTES OF SUCH A MUSCIAL INSTRUMENT AND EACH PRODUCING A COMPLEX ELECTRICAL OSCILLATION, MEANS CONNECTING SAID GENERATORS IN GROUPS OF SEQUENTIAL TONES, A PLURALITY OF TONE FILTERS EACH TUNED TO PASS THE FUNDAMENTALS OF A CORRESPONDING GROUP OF GENERATORS AND TO DISCRIMINATE AGAINST THE HARMONICS THEREOF, MEANS RESPECTIVELY CONNECTING SAID GROUPS OF GENERATORS TO SAID FILTER, AMPLIFIER MEANS CONNECTED TO SAID FILTERS, ELECTRO-ACOUSTIC TRANSLATING MEANS CONNECTED TO SAID AMPLIFIER MEANS FOR CONVERTING THE AMPLIFIED OSCILLATIONS INTO AUDIBLE MUSICAL TONES, PLAYING KEY OPERATED MEANS INTERCONNECTED WITH SAID GENERATORS FOR SELECTIVELY RENDERING SAID GENERATORS EFFECTIVE, A COMMON COLLECTOR, MEANS CONNECTING ALL OF
References Cited (Backward Citations)
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |