US2924784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic musical instrument
Assignee: Individual
•
Filing: 1956-07-18
•
Granted: 1960-02-09
•
Expires: 1976-07-18
Abstract
No abstract record available.
Inventors
- 👤 Richard H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:40
CPC Classifications
G; G10; G10H; G10H5/00; G10H5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2051012A
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US2216513A
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US2223539A
Cited
US2291787A
Cited
US2555039A
Cited
US2603774A
Cited
US2588082A
Cited
US2630560A
Cited
US2790906A
Cited
US2728054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |