Patents by Inventor Pekka J. Kaivanto

Pekka J. Kaivanto 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).

  • Attachment device
    Patent number: 4686748
    Abstract: A clamp to attach to a flexible sheet. The clamp has a first member with sides narrowing longitudinally to a first end and inclining upwardly inwardly. The first member can receive an attachment. A second member comprises a main body formed with a recess that narrows longitudinally to a first end and with interior sides that incline upwardly inwardly. Thus the first member can be received within the second member with the flexible sheet clamped between.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: August 18, 1987
    Inventor: Pekka J. Kaivanto