Patents by Inventor William Crelin

William Crelin 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).

  • Swimming pool steps
    Patent number: 5916098
    Abstract: A replacement pool step for installation into the interior corner of a swimming pool is disclosed. The pool step is installed such that the vinyl liner of the pool does not cover the pool step but rather is installed in such a manner that it is sealed to the front of the pool step.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: June 29, 1999
    Inventor: William Crelin