Patents by Inventor Alvin Gruber

Alvin Gruber 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).

  • Punch bowl or the like
    Patent number: D253569
    Type: Grant
    Filed: August 24, 1977
    Date of Patent: December 4, 1979
    Inventor: Alvin Gruber
  • Food bowl or the like
    Patent number: D255199
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: June 3, 1980
    Inventor: Alvin Gruber