Patents by Inventor Frank R. Donnelly

Frank R. Donnelly 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).

  • Convertible flatbed truck
    Patent number: 4141568
    Abstract: A convertible vehicle is provided in which a flatbed unit can be used to convert a tractor into a flatbed truck when the tractor is not used for towing a trailer unit.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: February 27, 1979
    Inventor: Frank R. Donnelly
  • Convertible flatbed truck
    Patent number: 4078818
    Abstract: A convertible vehicle is provided in which a flatbed unit can be used to convert a tractor into a flatbed truck when the tractor is not used for towing a trailer unit.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: March 14, 1978
    Inventor: Frank R. Donnelly
  • Expansion of building structure
    Patent number: 4058952
    Abstract: A building structure is expanded by extending the vertical support columns such that the roof structure is raised at least one story, and a floor structure is capable of being mounted in a position substantially intermediate the ground level and raised roof level.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: November 22, 1977
    Inventor: Frank R. Donnelly