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Patent US2986964A successfully refreshed from Google Patents.
US2986964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic musical instrument
Assignee: BALDWIN PIANO Co
•
Filing: 1956-11-13
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Granted: 1961-06-06
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Expires: 1976-11-13
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Bissonette
- 👤 Jr Frank J Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:33
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/053; G10H1/057; Y; Y10; Y10S; Y10S84/00; Y10S84/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2841043A
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US2918576A
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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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |