Patents by Inventor Leroy Collier

Leroy Collier 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).

  • Mobile lift cart
    Patent number: 4249749
    Abstract: A scissors type mobile tool cart for supporting a tool box on a platform that can be raised or lowered to various heights. The tool cart has a safety locking mechanism which prevents collapse of the cart and which must be manually operated to change the height of the platform which is supporting the tool box.
    Type: Grant
    Filed: March 1, 1979
    Date of Patent: February 10, 1981
    Inventor: Leroy Collier