Patents by Inventor Paul Sigrist

Paul Sigrist 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: 4108474
    Abstract: The temporary airtight connection of a connection hose of an air pump with a tube valve is effected by a fixation clamp presenting fastening means for connecting pieces.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: August 22, 1978
    Inventor: Paul Sigrist