Patents by Inventor William R. Corbett

William R. Corbett 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).

  • Portable door lock
    Patent number: 10612283
    Abstract: A portable door lock for use with a door hingedly mounted in a doorway formed of a door jamb and a locking recess wherein the door lock can be formed of first and second rectilinear U-shaped members formed of flat strips of metal.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: April 7, 2020
    Inventor: William R. Corbett
  • Portable Door Lock
    Publication number: 20170328101
    Abstract: A portable door lock for use with a door hingedly mounted in a doorway formed of a door jamb and a locking recess wherein the door lock can be formed of first and second rectilinear U-shaped members formed of flat strips of metal.
    Type: Application
    Filed: August 2, 2017
    Publication date: November 16, 2017
    Inventor: William R. Corbett