US3390600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
String tension adjustment for steel guitars
Assignee: JOSEPH J KELLEY JR
•
Filing: 1965-09-10
•
Granted: 1968-07-02
•
Expires: 1985-09-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph J Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:26
CPC Classifications
G; G10; G10D; G10D1/00; G10D1/04; G10D1/05; G10D1/08; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |