Patents by Inventor Carl Leapold Frank

Carl Leapold Frank 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).

  • Roller cane
    Patent number: 6715794
    Abstract: The roller cane invention has a handle at one end, thereof, and a rubber tip at the other end. The cane's handle is used as the roller skate's foot support plates. The cane's hand grip wrap is used as the roller skate's shoe fastening cords, wrapped and tied around each plate and shoe. The cane's main shaft seperates into four component shafts that fasten to the under side of the foot support plates to form the wheel axle shafts and wheels, of the roller skates. A portion of the cane's shaft also is used to make a socket driver tool, and friction brake, used on the roller skates. A pouch, attaches to a belt, and carries a hex key screw driver tool, and components not used on the roller skates, yet necessary when constructing the walking cane.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: April 6, 2004
    Inventor: Carl Leapold Frank
  • Roller cane
    Publication number: 20030132627
    Abstract: The roller cane invention has a handle at one end, thereof, and a rubber tip at the other end.
    Type: Application
    Filed: June 26, 2002
    Publication date: July 17, 2003
    Inventor: Carl Leapold Frank