Patents by Inventor Donald Paul Day

Donald Paul Day 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).

  • Helmet shaped cooler
    Patent number: D713213
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 16, 2014
    Inventor: Donald Paul Day
  • Full face helmet shaped cooler
    Patent number: D932842
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: October 12, 2021
    Inventor: Donald Paul Day