Patents by Inventor Martin J. Markley

Martin J. Markley 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).

  • Non-slip ladder base device
    Patent number: 9359820
    Abstract: A ladder base device having a base platform and a pair of socket-like receptacles for receiving the ends of a pair of ladder rails. The receptacles are pivotally attached to the platform and the platform is reversible with different surfaces for frictional engagement with different types of ground or floor surfaces on each side.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: June 7, 2016
    Inventors: Martin J. Markley, Joseph J. Losito
  • Non-slip ladder base device
    Publication number: 20150376947
    Abstract: A ladder base device having a base platform and a pair of socket-like receptacles for receiving the ends of a pair of ladder rails. The receptacles are pivotally attached to the platform and the platform is reversible with different surfaces for frictional engagement with different types of ground or floor surfaces on each side.
    Type: Application
    Filed: August 31, 2015
    Publication date: December 31, 2015
    Inventors: Martin J. Markley, Joseph J. Losito