Patents by Inventor Charles Patrick McElroy

Charles Patrick McElroy 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).

  • LADDER ASSEMBLY
    Publication number: 20110214943
    Abstract: A ladder assembly (10) comprising a pair of plinths (30) pivotally connected to the bottom ends (22) of the ladder posts (21). To use the ladder assembly (10), the plinths (30) are positioned on a substantially horizontal support surface (H) and the top ends (23) of the ladder posts (21) are propped against a vertical surface (V). Easily installable and/or easily removable anchors (40) are then used to anchor the plinths (30) to the horizontal surface (H).
    Type: Application
    Filed: March 4, 2011
    Publication date: September 8, 2011
    Inventor: Charles Patrick McElroy