US3536819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic musical instruments with small tone generators adjacent key switches
Assignee: Toshiba Corp
•
Filing: 1968-06-21
•
Granted: 1970-10-27
•
Expires: 1988-06-21
Abstract
No abstract record available.
Inventors
- 👤 Mamoru Kuriyagawa
- 👤 Masami Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:07
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/32; G10H1/34; G10H1/344; G10H2220/00; G10H2220/155; G10H2220/265; G10H2220/275
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |