Convertible footwear

Details Convertible footwear Convertible footwear

1990-03-19

1994-03-15

Sewell, Paul T.

Boots, shoes, and leggings

Antislipping devices

String type

36114, 36 67D, 36 59A, A43B 2328, A43C 1500

Patent

active

052937011

ABSTRACT:
Footwear which is adaptable for athletic events requiring different sole configurations for different playing surfaces, for example artificial turf and natural turf, by providing the soles of shoes with a prescribed pattern of protuberances which are suitable for one type of event, and altering the pattern to adapt the shoes for another and different type of event. In particular the sole of each shoe can have removable conical cleats for playing on natural turf, and removable stud or square cleats for playing on artificial turf.

REFERENCES:
patent: 3281971 (1966-11-01), Weitzner
patent: 3444630 (1969-05-01), Morelli
patent: 3793750 (1974-02-01), Bowerman
patent: 3812605 (1974-05-01), Kaestle
patent: 3844056 (1974-10-01), Kwan
patent: 3859739 (1975-01-01), Dassler
patent: 4194310 (1980-03-01), Bowerman
patent: 4262434 (1981-04-01), Michelotti
patent: 4299038 (1981-11-01), Epple
patent: 4318232 (1982-03-01), Ching
patent: 4380878 (1983-04-01), Skaja
patent: 4631842 (1986-12-01), Koskela
patent: 4782604 (1988-11-01), Wen-Shown

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