Patents by Inventor Joseph J. Ferreira

Joseph J. Ferreira 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).

  • Removable shoe spike lockable to configured sole plate
    Patent number: 5524367
    Abstract: A spike shoe construction including a socket carrying a ribbed insert mounted on and spaced from an outer sole with each socket carrying a reusable lock for locking spikes installed in the socket. Each spike in turn carries a lock which is non-reusable in that it is so distorted or broken when removed to render it inoperative.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: June 11, 1996
    Assignee: Trisport, Ltd.
    Inventors: Joseph J. Ferreira, Roy S. Collins
  • Removable shoe spike lockable to configured sole plate
    Patent number: 5123184
    Abstract: A spike shoe construction including a socket carrying ribbed insert mounted on and spaced from an outer sole with each socket carrying reusable lock means for locking spikes installed in the socket. Each spike in turn carries a lock means which is non-reusable in that it is so distorted or broken when removed to render it inoperative.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: June 23, 1992
    Inventor: Joseph J. Ferreira