Patents by Inventor Edward L. Gillilan

Edward L. Gillilan 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: 4229633
    Abstract: A programmable switch in the form of an output display similar to those generally known in the art as a seven-segment display used for digital display of output. This programmable switch provides a plurality of segments that can operate as a switch to generate a numerical or alphabetical program for entry into an electronic program circuit. The plurality of segments are recessed into the face of the switch body so that a stylus instrument can be inserted into the recess of individual segments to generate in each switch body the desired number, letter or other symbol. A plurality of switch bodies may be positioned adjacent one another to increase the number of digits or indicia to be entered into an electronic program circuit. For all segments there is one conductive layer which acts as the "common" side of the electric circuit.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: October 21, 1980
    Inventor: Edward L. Gillilan
  • Patent number: D446007
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: August 7, 2001
    Inventor: Edward L. Gillilan