Patents by Inventor Signe Grassman

Signe Grassman 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).

  • VACUUM CLEANER MOUTHPIECE
    Publication number: 20110296644
    Abstract: Vacuum cleaner mouthpiece with a suction mouthpiece (1) with suction openings and a connection sleeve coupling (2) comprising a shovel (3), so arranged in relation to the suction mouthpiece (1) that air is sucked in over the upwards facing surface of the shovel (3).
    Type: Application
    Filed: December 18, 2009
    Publication date: December 8, 2011
    Inventor: Signe Grassman