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Patent US3001431A successfully refreshed from Google Patents.
US3001431A
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US
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Musical instrument system
Assignee: Wurlitzer Co
•
Filing: 1954-09-22
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Granted: 1961-09-26
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Expires: 1974-09-22
Abstract
No abstract record available.
Inventors
- 👤 Clifford W Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:33
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/0008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2695338A
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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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |