US2855816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Music synthesizer
Assignee: RCA Corp
•
Filing: 1951-12-26
•
Granted: 1958-10-14
•
Expires: 1971-12-26
Abstract
No abstract record available.
Inventors
- 👤 Harry F Olson
- 👤 Belar Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:48
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/0033; G10H1/0041; G10H1/02; G10H1/04; G10H1/06; G10H1/18; G10H1/24
Claims Analysis
Total Claims: 0
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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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |