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US2933697A
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Electronic musical instrument having voltage sensitive frequency variation means
Assignee: Gulton Industries Inc
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Filing: 1955-05-13
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Granted: 1960-04-19
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Expires: 1975-05-13
Abstract
No abstract record available.
Inventors
- 👤 Paul B Oncley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:45
CPC Classifications
G; G10; G10H; G10H5/00; G10H5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2182377A
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US2407270A
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US2356510A
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US2495634A
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US2526207A
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US2649006A
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US2681585A
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US2770734A
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US2788446A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |