Patents by Inventor Ruth Joseph

Ruth Joseph 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).

  • See-through, smoked gray, plexiglass refrigerator door
    Patent number: 4072486
    Abstract: A refrigerator is disclosed having a door on its front side and which is made of transparent, smoked gray Plexiglass so that a person can see through the door and into the interior of the refrigerator, thus being able to seek for an item of food before opening the door so to conserve electrical energy, and the outer side of the door having a switch button to turn on the light inside the refrigerator while the door is closed so to illuminate the interior.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: February 7, 1978
    Inventor: Ruth Joseph