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US2323969A
Expired / Lapsed
US
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Stringed instrument
Assignee: Individual
•
Filing: 1942-04-28
•
Granted: 1943-07-13
•
Expires: 1962-04-28
Abstract
No abstract record available.
Inventors
- 👤 Biederman Clarence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:29
CPC Classifications
G; G10; G10D; G10D3/00; G10D3/14; G10D3/147; Y; Y10; Y10T; Y10T24/00; Y10T24/21; Y10T24/2177
Claims Analysis
Total Claims: 0
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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) | 1946-07-12 | 1947-01-11 | 1947-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-12 | 1951-01-11 | 1951-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-12 | 1955-01-11 | 1955-07-13 | $7700.00 | Window Closed / Lapsed |