Patent US4043241A successfully refreshed from Google Patents.
US4043241A
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Musical shoe
Assignee: TEH-TSENG HUANG
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Filing: 1976-08-02
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Granted: 1977-08-23
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Expires: 1996-08-02
Abstract
Abstract A shoe provided with a plurality of keys on the underside thereof which when depressed will produce various musical tones by means of an electronic circuit provided inside the shoe.
Inventors
- 👤 Hsing-Ching Liu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:06
CPC Classifications
G; G10; G10H; G10H5/00; G10H5/02; G10H5/04; A; A43; A43B; A43B3/00; A43B3/34; A43B3/50; A43B5/00; A43B5/12; G10H1/00; G10H1/32; G10H2220/00; G10H2220/155; G10H2220/321; G10H2220/336; Y; Y10; Y10S; Y10S84/00; Y10S84/07; Y10S84/08; Y10S84/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
A musical shoe for children comprised of a separable upper and lower half, the upper half being flat and provided with straps for the purpose of securing the shoe to the foot and having a plurality of holes and a speaker provided thereunder; said lower half having a base portion and at least four inclining sides, said lower half also being hollow and provided internally with an electronic circuit including a power source, a plurality of switches which when closed cause the electronic circuit to produce various musical tones which are emitted from said speaker, and an on-off/volume control switch.
Claim 2
Dependent Claim
100 words
A musical shoe for children comprised of a separable upper and lower half, the upper half being flat and provided with straps for the purpose of securing the shoe to the foot and having a plurality of holes and a speaker provided thereunder; said lower half having a base portion and at least four inclining sides, said lower half also being hollow and provided internally with an electronic circuit including a power source, a plurality of switches which when closed cause the electronic circuit to produce various musical tones which are emitted from said speaker, and an on-off/volume control switch.
Claim 3
Dependent Claim
40 words
A musical shoe as in claim 1 wherein said plurality of switches are piano key type switches provided on the said inclined sides of the lower half of the shoe, having no more than one switch to each inclined side.
Claim 4
Dependent Claim
42 words
A shoe as in claim 2, wherein when the shoe has been secured to the foot by means of the straps musical tones may be produced by shifting the foot to cause one of the said plurality of switches to be depressed.
Claim 5
Dependent Claim
21 words
A musical shoe as in claim 3, wherein by selectively causing different switches to be depressed, simple melodies may be produced.
Claim 6
Dependent Claim
36 words
A musical shoe as in claim 1 wherein said upper half also includes an arched portion corresponding to the natural arch of the foot, having said plurality of holes provided therethrough and said speaker provided thereunder.
References Cited (Backward Citations)
US2735220A
Cited
US1744513A
Cited
US1943222A
Cited
US2320560A
Cited
US2644248A
Cited
US2933832A
Cited
US2940184A
Cited
US3501144A
Cited
US3702999A
Cited
US3791375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |