US3605544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
String for musical instruments
Assignee: Nippon Gakki Co Ltd
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Filing: 1969-06-25
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Granted: 1971-09-20
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Expires: 1989-06-25
Abstract
Abstract A STRING FOR MUSICAL INSTRUMENTS COMPRISING A CORE WIRE AND A COVERING WIRE IN WHICH THE PITCH OF WINDING SAID COVERING WIRE IS LARGER THAN THE DIAMETER OF SAID COVERING WIRE, AND BEING CHARACTERIZED IN THAT EACH TURN OF SAID COVERING WIRE DOES NOT MAKE CONTACT WITH EACH ADJACENT TURN OF SAID COVERING WIRE, AND THUS A SOUND WITH GOOD TONE QUALITY AND LASTING VIBRATION CAN BE PRODUCED.
Inventors
- 👤 Masaru Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:29
CPC Classifications
G; G10; G10D; G10D3/00; G10D3/10
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |