Patents by Inventor Teodor Kalmykow

Teodor Kalmykow 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: 5307581
    Abstract: An information display device wherein there is a base plate with information bearing face plates detachably mounted thereon by one or more spline elements that press-fit with formations on each of the opposing faces of the base and face plate. End caps are optional as are also separator strips between panels where there are a number of panels mounted on one base plate. Splines press-fit into grooves in each of the base plate and face plate. In one embodiment the spline is U-shaped receiving therein a rib on one member and projecting into a groove formed between two ribs on the other of the two plates.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: May 3, 1994
    Assignee: AS&G Lettering Systems Inc.
    Inventor: Teodor Kalmykow