Patents by Inventor David Parpala

David Parpala 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: 5975635
    Abstract: A portable pedestal seat for use by bird watchers, duck hunters, fishermen, or the like, including a seat, and, for supporting the seat, an adjustable pedestal formed of a pair of tubes, the smaller of the tubes being slidably engaged within the other for extending the pedestal for adjusting the height of the seat. The free end of the inner tube is cut on a 45 degree bias and provides a terminal edge surface of such area as to prevent the pedestal seat from sinking into a typical soft ground surface by more than about 18 inches which is enough to support the seat in an upright attitude and to allow for relative ease in removal.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: November 2, 1999
    Inventor: David Parpala
  • Patent number: D523251
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: June 20, 2006
    Inventor: David Parpala