Patents by Inventor Philippe Bertail

Philippe Bertail 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).

  • Trailer having a self-lifting platform
    Patent number: 3937301
    Abstract: A trailer is provided with a self-lifting platform and comprises a vertical mast having vertical lifting supports spaced in the longitudinal direction of the trailer. Each lifting support carries a toothed rack and symmetrical independent lifting mechanisms for actuating roller stars which are in engagement with the rack teeth.
    Type: Grant
    Filed: March 18, 1974
    Date of Patent: February 10, 1976
    Inventor: Philippe Bertail