Patents by Inventor Charles E. Washington

Charles E. Washington 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).

  • Patent number: 8302263
    Abstract: A rectangular partial door cover, specifically design to cover the doorknob, surface locks, deadbolt locks, and chain locks of an entrance door to an apartment or house. The base of the rectangular device is attached to the entrance door with a set of screws. The device has four sides, and a sliding door with a knob. The door slides open when the knob is pulled back, and it closes when the knob is pushed forward.
    Type: Grant
    Filed: September 12, 2009
    Date of Patent: November 6, 2012
    Inventor: Charles E. Washington
  • Publication number: 20110061203
    Abstract: A rectangular partial door cover, specifically design to cover the doorknob, surface locks, deadbolt locks, and chain locks of an entrance door to an apartment or house. The base of the rectangular device is attached to the entrance door with a set of screws. The device have four sides, and a sliding door with a knob. The door slides open when the knob is pulled back, and it closes when the knob is pushed forward.
    Type: Application
    Filed: September 12, 2009
    Publication date: March 17, 2011
    Inventor: Charles E. Washington