US3327043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple speaker sound output system for reducing intermodulation distortion
Assignee: DH Baldwin Co
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Filing: 1964-03-12
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Granted: 1967-06-20
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Expires: 1984-03-12
Abstract
No abstract record available.
Inventors
- 👤 Daniel W Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:13
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/0091
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN A MUSIC SYSTEM, A SOURCE OF ELECTRICAL SIGNALS REPRESENTING MUSICAL TONES AND HAVING AT LEAST FUNDAMENTALS DISTRIBUTED OVER AT LEAST TWO OCTAVES, MEANS FOR DIVIDING SAID TONES INTO NOT LESS THAN THREE NOR MORE THAN SIX CHANNELS EACH COLLECTING ONLY TONES OF ADJACENT NOMENCLATURE, AND MEANS FOR SEPARATELY TRANSDUCING THE COMBINED TONES.
Claim 2
Dependent Claim
53 words
IN A MUSIC SYSTEM, A SOURCE OF ELECTRICAL SIGNALS REPRESENTING MUSICAL TONES AND HAVING AT LEAST FUNDAMENTALS DISTRIBUTED OVER AT LEAST TWO OCTAVES, MEANS FOR DIVIDING SAID TONES INTO NOT LESS THAN THREE NOR MORE THAN SIX CHANNELS EACH COLLECTING ONLY TONES OF ADJACENT NOMENCLATURE, AND MEANS FOR SEPARATELY TRANSDUCING THE COMBINED TONES.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |