Patent US4501185A successfully refreshed from Google Patents.
US4501185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer for stringer musical instrument
Assignee: DiMarzio Musical Instrument Pickups Inc
•
Filing: 1983-07-29
•
Granted: 1985-02-26
•
Expires: 2003-07-29
Abstract
Abstract A transducer for a stringed musical instrument includes a pair of coils mounted adjacent each string of the instrument. The coils have substantially the same number of turns of electrically conducting wire wound thereon, and the wires constituting the coils are of different gauges.
Inventors
- 👤 Steven L. Blucher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:54
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/12; G10H3/14; G10H3/18; G10H3/182
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
In a transducer for a stringed musical instrument whose output is to be electrically amplified, in which said transducer includes a pair of coils mounted adjacent each string of said instrument, the improvement in which said coils have individual axes and substantially the same number of turns of electrically conducting wire wound thereon, and the wires constituting said coils are of different gauges.
Claim 2
Dependent Claim
63 words
In a transducer for a stringed musical instrument whose output is to be electrically amplified, in which said transducer includes a pair of coils mounted adjacent each string of said instrument, the improvement in which said coils have individual axes and substantially the same number of turns of electrically conducting wire wound thereon, and the wires constituting said coils are of different gauges.
Claim 3
Dependent Claim
21 words
A transducer as in claim 1, in which said coil wires range in diameter between about 0.00078 inch and 0.00400 inch.
Claim 4
Dependent Claim
34 words
A transducer as in claim 2, in which the wire diameter of one of said coils is about 0.00249 inch, and the wire diameter of the other of said coils is about 0.00198 inch.
References Cited (Backward Citations)
US2896491A
Cited
US2897709A
Cited
US2964985A
Cited
US3711619A
Cited
US3962946A
Cited
US4283982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |