Patents by Inventor Karl Birkenstock

Karl Birkenstock 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: 4559678
    Abstract: A fastener for use with a leather or leather-like article having a pair of panels with at least one fastening anchor portion and one strap portion extending toward each other but short of actual contact, the fastening anchor portion having an anchor stud, the strap portion having a series of punch holes extending therethrough. The fastener comprises a flexible bridging strap-like member bridging across between the fastening anchor portion and the strap portion. This bridging member has at one end a stud-receiving portion for coaction with the stud, including an opening for entry and securement of the stud. The other end has a buckle portion for encompassing and sliding along the strap and having a fixed peg projecting therefrom for entering and engaging any one of the punch holes, so as to adjust for size according to which punch hole is so engaged. A bridging strip joins the stud receiving portion to the buckle portion.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: December 24, 1985
    Inventor: Karl Birkenstock