Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 5086572 | Self-ventilating shoe A shoe ventilation system which includes an upper having an air inlet and an air outlet disposed in the upper portion thereof, respectively, and a one-way air flowing member disposed in the lower portion thereof, an inner sole having a plurality holes in ... | 02/11/1992 |
| 4979317 | Ventilated synthetic resin shoe A shoe with a synthetic resin shell that is easily and inexpensively mass produced, and which is both water proof and provides ventilation included a number of ventilation holes in the shell. The size of the ventilating holes are such that surfaces tensio... | 12/25/1990 |
| 4837948 | Natural ventilation type footwear An article of foorwear comprising an improved insole, a vent frame member established in the openings provided on the both sides of the footwear, respectively, including a groove defined along the inward edge of a boundary protrusion thereof, a plurality ... | 06/13/1989 |
| 4785558 | Shoe upper of interknitted outer and inner knit layers A shoe is described having a shoe upper comprising an outer knit fabric layer, an inner knit fabric layer provided opposite to said outer knit fabric layer through a space, and a crossing thread which is interknitted to be bound into the outer and inner k... | 11/22/1988 |
| 4771555 | Waterproof boot having removable ventilation means A sport boot such as ski boot which is both water-proof and air permeable and which is comprised of an outer sheath formed of thick impermeable material, frames provided integrally in suitable portions of the side, upper or sole part of the outer sheath a... | 09/20/1988 |
| 4693021 | Ventilated item of sport footwear, particularly for motorcyclists The footwear item comprises an upper having a structure associated internally therewith. The structure is composed of a perforated liner, and a mesh. A grid is inserted therebetween and has enlarged knots provided with spacer elements. The liner is placed... | 09/15/1987 |
| 4571856 | Double laced athletic shoe An athletic shoe includes a sole portion (12) for disposal adjacent the sole of the foot, an upper (14) secured to sole portion (12) about the periphery thereof and cooperating with sole portion (12) to enclose the foot of the wearer and an inner support ... | 02/25/1986 |
| 4458429 | Tongue for a shoe, particularly a sport shoe, and a shoe including such a tongue A tongue for a shoe, particularly a sport shoe. The tongue has a padded front surface and a multiplicity of orifices (3) passing through this surface. Each of the orifices contains a layer (5) of a porous or reticular material.... | 07/10/1984 |
| 4343097 | Shoes Shoes having an upper formed with a plurality of dimples with an air hole therein are proposed. Hot dieing to form dimples hardens the leather at the dimples, increasing the durability of the shoes. Thus, the shoes are highly durable even though they are ... | 08/10/1982 |
| 4270227 | Articles incorporating air vents Air vent particularly suited for incorporation in rainwear comprising a base portion having a hole therein; and an elongate member secured to the base portion, the elongate member having a passage therethrough in communication with the hole, at least a po... | 06/02/1981 |
| 4233758 | Footwear Ventilated footwear formed of an upper of impermeable material having its lower margin spaced from the upper surface of the sole, whether inner or tread sole, and socklining, to provide a space for ventilation, and the upper is secured to the sole by mean... | 11/18/1980 |
| 4096651 | Ski boot A ski boot for downhill skiing is provided comprising an inner shell, a sole and an outer environment and climate shield. The inner shell, which constitutes the foot support, consists of an upper and a lower part from a stiff material with a mutual joint ... | 06/27/1978 |
| 4095355 | Ski boot with aerated padding of differing degrees of softness An outer rigid ski boot has padding in the form of a soft inshoe therein. The soft inshoe has a surface comprised of a plurality of spaced projections having their tips in contact with the outer rigid upper and/or the skier's foot. The degree of softness ... | 06/20/1978 |
| 4080745 | Footwear A common style of sports shoe which is generally recognized as providing maximum support for the foot has an upper with a foot-receiving opening which includes a slot or elongated gap or notch extending forwards and downwards over the instep of the foot, ... | 03/28/1978 |
