Patents by Inventor Ronald Grewe

Ronald Grewe 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).

  • Sign stand with rolling base
    Patent number: 5878518
    Abstract: A portable sign stand with rollers and an adjustable weighted base. The base member has one or more compartments so that liquid or solid ballast can be added to stabilize the sign stand in windy conditions. Wheels are provided on one edge of the base member in order to allow the sign stand to be rolled and easily moved to different positions. The axle member for the wheels is held in place on the base member by a bracket member which also helps secure the sign member to the base member. A pair of springs of the like can be used to connect the sign member to the base in order to provide a better wind-resistant sign stand.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: March 9, 1999
    Assignee: Marketing Displays, Inc.
    Inventor: Ronald Grewe