Patents by Inventor Richard Malcolm Kerr

Richard Malcolm Kerr 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: 10041237
    Abstract: A device for controlling the duration of time water is retained in a bath tub or other liquid retaining receptacle; the device comprising a timer element and a plug assembly operable between a closed state and an opened state; the plug assembly changing from the closed state to the opened state at the expiry of a time duration pre-selected on the timer element.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: August 7, 2018
    Inventor: Richard Malcolm Kerr
  • Publication number: 20170096805
    Abstract: A device for controlling the duration of time water is retained in a bath tub or other liquid retaining receptacle; the device comprising a timer element and a plug assembly operable between a closed state and an opened state; the plug assembly changing from the closed state to the opened state at the expiry of a time duration pre-selected on the timer element.
    Type: Application
    Filed: March 24, 2015
    Publication date: April 6, 2017
    Inventor: Richard Malcolm Kerr