Patents by Inventor John L. Simerman

John L. Simerman 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: 4542807
    Abstract: A stepladder of the folding freestanding type has steps only toward the upper end thereof and has a step deficient region toward the lower end thereof for receiving a smaller stepladder in nesting relation therewith so that the steps of the smaller stepladder provide user access to the steps of the larger stepladder. A nested sequence of such stepladders with all except the smallest one of that sequence being step deficient in a lower region may include several such ladders thereby providing the user with the option of selecting a ladder of a desired height from among several possible heights with the required storage space for the several ladders being the same as the required storage for space for a single ladder of the greatest height. Braces, supports and locking arrangements for fastening each ladder within the step deficient region of the next larger ladder are also disclosed.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: September 24, 1985
    Inventor: John L. Simerman