Patent US2983177A successfully refreshed from Google Patents.
US2983177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic piano
Assignee: MERIDAN Corp
•
Filing: 1958-05-23
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Granted: 1961-05-09
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Expires: 1978-05-23
Abstract
No abstract record available.
Inventors
- 👤 Hale J Sabine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:16
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/12; G10H3/14; G10H3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US459382A
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US722967A
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US689475A
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US727514A
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US1215973A
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US1701420A
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US1988564A
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US2001391A
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US2001392A
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US2187612A
Cited
US2535143A
Cited
US2530252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |