Patents by Inventor Linus A. Sipe

Linus A. Sipe 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).

  • Portable utility platform unit
    Patent number: 5148890
    Abstract: A portable utility platform unit adapted to be employed in combination with other such units to cooperatively provide a temporary support surface upon roof trusses or floor joists for workers in the building trades.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: September 22, 1992
    Inventor: Linus A. Sipe