Patents by Inventor Edwardo R. Borda

Edwardo R. Borda 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: 4574484
    Abstract: The apparatus serves to draw various geometric patterns on circular sheets of paper. Primarily, it consists of a base having a hand operated drive wheel that rotates a turntable, to which a piece of circular paper has been attached by pins sticking up from its surface. It also includes an adjustable pen holder support, which is fastened to a guide rod which is removably received, at one end, in any one of a number of grooves in a weave rack rod fastened to the base, and the other end of the guide rod is removably received in any one of several openings in a French curve arm pivotally adjustable on the drive wheel.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: March 11, 1986
    Inventor: Edwardo R. Borda