Patents by Inventor Robert D. Spangler

Robert D. Spangler 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).

  • Collapsible window enclosure for pets
    Patent number: 6470829
    Abstract: A collapsible pet enclosure that is fashioned to fit in standard windows and has removable material coverings and screen panels on all sides. Domestic animals can use the enclosure to enjoy the out doors with out the owners fearing for their safety or health, as is the case in letting pets out of doors on the ground level. There are detachable wheels as part of the unit that convert the enclosure to a mobile pet carrier, that one may roll instead of carry.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: October 29, 2002
    Inventors: Robert D. Spangler, Brian H. Jordan