Patents by Inventor Jean J. Lahaie

Jean J. Lahaie 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).

  • Scaffold
    Patent number: 5310018
    Abstract: An improved scaffold of the lift type having a base and a working platform on top of the base. Vertical support posts are provided at the corners of the base passing through guide means at the corners of the platform. Cooperating drive means on the platform and posts are used to raise or lower the platform on the posts relative to the base. A motor on the platform selectively operates the drive means.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: May 10, 1994
    Inventor: Jean J. Lahaie