Patent US2698360A successfully refreshed from Google Patents.
US2698360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for controlling the tone quality and tone volume of electrical musical instruments
Assignee: Individual
•
Filing: 1950-07-11
•
Granted: 1954-12-28
•
Expires: 1970-07-11
Abstract
No abstract record available.
Inventors
- 👤 Seybold Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:09
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1543990A
Cited
US1612952A
Cited
US2223084A
Cited
US2340002A
Cited
US2570701A
Cited
US2403664A
Cited
US2495581A
Cited
US2535686A
Cited
US2531312A
Cited
US2584277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |