US2952179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic piano
Assignee: Wurlitzer Co
•
Filing: 1954-07-21
•
Granted: 1960-09-13
•
Expires: 1974-07-21
Abstract
No abstract record available.
Inventors
- 👤 Clifford W Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:47
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/12; G10H3/14; G10H3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US579031A
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US2001722A
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US2089165A
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GB454069A
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US2187251A
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US2200718A
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US2413062A
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US2480131A
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US2481186A
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US2694463A
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US2799196A
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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) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |