Patents by Inventor Mark S. Elsfelder

Mark S. Elsfelder 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).

  • Vehicle lock protector
    Patent number: 5219384
    Abstract: A protector for a lock used in combination with a steel cable to prevent theft of a two-wheeled vehicle. The lock is received within the protector and when at a locked condition, the shackle portion thereof is inaccessible, as to a bolt cutter, and where the steel cable is incapable of being severed by a bolt cutter.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: June 15, 1993
    Inventors: Mark S. Elsfelder, Daniel A. Vanbibber