Patents by Inventor Kal Efron

Kal Efron 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: D267620
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: January 18, 1983
    Inventor: Kal Efron