Patent US3407696A successfully refreshed from Google Patents.
US3407696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stringed musical instrument stable, harmonic-free tuning
Assignee: JIMMY G SMITH
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Filing: 1967-09-14
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Granted: 1968-10-29
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Expires: 1987-09-14
Abstract
No abstract record available.
Inventors
- 👤 Jimmy G Smith
- 👤 Orville J Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:03
CPC Classifications
G; G10; G10D; G10D3/00; G10D3/14
Claims Analysis
Total Claims: 0
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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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |