US3489843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for producing celeste animation in music by producing simultaneous sharp and flat tone signals from tone signals of true frequency
Assignee: Marmon Co
•
Filing: 1965-08-26
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Granted: 1970-01-13
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Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Ray B Schrecongost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:17
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/043; G10H1/045; Y; Y10; Y10S; Y10S84/00; Y10S84/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |