Patents by Inventor Herbert C. Roberts

Herbert C. Roberts 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).

  • Patent number: 4139110
    Abstract: This device consists primarily of a movable frame, mounted inside of a fixed frame on the top of a vehicle. The device includes two davit-like structures which connect to a rod having pulley and line means, which will enable the boat or other load to be handled easily by a single person.
    Type: Grant
    Filed: April 20, 1977
    Date of Patent: February 13, 1979
    Inventor: Herbert C. Roberts