Patents by Inventor Heidi Keltner

Heidi Keltner 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: 4604987
    Abstract: A heated stadium cushion has a pad having a pocket adapted to contain an air-activated chemical heating packet. A second pocket contains weather-resistant clothing, such as a poncho. In another embodiment a slipcover is provided for enclosing a conventional seat cushion, the slipcover having an enclosed pocket for the heating element.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: August 12, 1986
    Inventor: Heidi Keltner
  • Patent number: 3968620
    Abstract: An article fabricated from a flexible foam material, such as foam rubber, is compressed by encasing the article in a substantially air-tight sack, and withdrawing air from the sack, thereby reducing the size of the foam article for packaging. The article may be a fabric or plastic covered object, such as a pillow or toy animal; after compression, the object is packaged in a box. The packaged article provides an unusual gift item.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: July 13, 1976
    Inventor: Heidi Keltner