Patent US3479917A successfully refreshed from Google Patents.
US3479917A
Expired / Lapsed
US
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Multiple lever manual tone changer for guitars
Assignee: ANTHONY ZITNIK JR
•
Filing: 1967-12-15
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Granted: 1969-11-25
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Expires: 1987-12-15
Abstract
No abstract record available.
Inventors
- 👤 Anthony Zitnik Jr
- 👤 James T Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:00
CPC Classifications
G; G10; G10D; G10D3/00; G10D3/14; G10D3/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3124991A
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US2234874A
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US2741146A
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US2844985A
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US2949806A
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US3252368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |