Patents by Inventor Lehri S. Khalsa

Lehri S. Khalsa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4133118
    Abstract: Footwear having an inner sole formed of a resilient material with an upper surface contoured to provide a comfortable foot-supporting surface. The inner sole has an arch support region, a depressed heel cup region, a metatarsal support region, and in one embodiment, a curved low toe ridge which defines the toe region from the metatarsal support region and which extends transversely across the sole under the first phalanx of each of the toes. The insole is supported on an outer sole which has a plurality of upwardly extending ridges providing cushioning with various firmness in the different regions of the sole to compensate for the weight distribution of the foot. The inner sole and footwear upper are arranged to securely cradle the foot of the wearer.
    Type: Grant
    Filed: May 6, 1977
    Date of Patent: January 9, 1979
    Inventors: Gurujot S. Khalsa, Lehri S. Khalsa, Harbhajan S. K. Yogiji