US2873637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Touch control for polyphonic musical instruments
Assignee: RCA Corp
•
Filing: 1954-03-26
•
Granted: 1959-02-17
•
Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 Edward W Herold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:30
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/053; G10H1/055; Y; Y10; Y10S; Y10S84/00; Y10S84/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732545A
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US1661058A
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US1847119A
Cited
US2141231A
Cited
US2142580A
Cited
US2201232A
Cited
US2270789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |