Patent US2989884A successfully refreshed from Google Patents.
US2989884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stringed musical instrument
Assignee: Individual
•
Filing: 1957-09-16
•
Granted: 1961-06-27
•
Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 David D Bunker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:16
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/12; G10H3/14; G10H3/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US593818A
Cited
US933244A
Cited
US1047217A
Cited
US1667925A
Cited
US1828315A
Cited
US2261357A
Cited
US2473442A
Cited
US2603119A
Cited
US2784631A
Cited
US2788694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |