US3535972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching device for electronic musical instrument with sustain effect
Assignee: Hitachi Ltd
•
Filing: 1968-06-05
•
Granted: 1970-10-27
•
Expires: 1988-06-05
Abstract
No abstract record available.
Inventors
- 👤 Yuichi Teranishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:59
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/16; G; G10; G10H; G10H1/00; G10H1/18; H03K17/08; H03K17/081; H03K17/08112; H03K17/51; H03K17/56; H03K17/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
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 |