Patents by Inventor Jean-Guy Couillard

Jean-Guy Couillard 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).

  • Lock puller
    Patent number: 5603487
    Abstract: A tool for pulling open a locked door that is framed by frame members. The tool has fulcrum means adapted to bear against the frame members. The tool also has a lever adapted to cooperate with the fulcrum means while pulling on the door to open it. The lever transmits a pulling force to the door while the fulcrum means transmits a reactive force against the frame members so as to minimize damage to the door.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: February 18, 1997
    Inventor: Jean-Guy Couillard