Patents by Inventor John Jacob Samarin

John Jacob Samarin 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).

  • Stretcher frame
    Patent number: 3950869
    Abstract: A device for stretching or sizing canvas or like fabrics has a frame with detachable side and end portions. At least one side and one end portion are provided with beads in which levers are pivotally journaled. The opposite side and end portions having gripping means for the material to be stretched. The material is engaged on the opposite side and end portions by said gripping means, and the levers are depressed and engaged with temporary holding means during the stretching process.
    Type: Grant
    Filed: July 30, 1975
    Date of Patent: April 20, 1976
    Inventor: John Jacob Samarin