Patents by Inventor Sheryl F. Knutson

Sheryl F. Knutson 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).

  • Eight sided container
    Patent number: D586124
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: February 10, 2009
    Assignee: Decra Stone, Inc.
    Inventors: Lawrence M. Knutson, Richard L. Knutson, Sheryl F. Knutson
  • Eight sided food container
    Patent number: D597310
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: August 4, 2009
    Assignee: Decra Stone, Inc.
    Inventors: Lawrence M. Knutson, Richard L. Knutson, Sheryl F. Knutson
  • Seven sided food container
    Patent number: D597311
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: August 4, 2009
    Assignee: Decra Stone, Inc.
    Inventors: Lawrence M. Knutson, Richard L. Knutson, Sheryl F. Knutson
  • Six sided food container
    Patent number: D597739
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: August 11, 2009
    Assignee: Decra Stone, Inc.
    Inventors: Lawrence M. Knutson, Richard L. Knutson, Sheryl F. Knutson
  • Container
    Patent number: D788532
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 6, 2017
    Assignee: Decra Stone, Inc.
    Inventors: Sheryl F. Knutson, Ethelyn M. Knutson, Rebecca L. Gibson
  • Container with scallops and wicker appearance
    Patent number: D788533
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 6, 2017
    Assignee: Decra Stone, Inc.
    Inventors: Sheryl F. Knutson, Ethelyn M. Knutson, Rebecca L. Gibson
  • Seven scallop bowl with wicker appearance
    Patent number: D788534
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 6, 2017
    Assignee: Decra Stone, Inc.
    Inventors: Sheryl F. Knutson, Ethelyn M. Knutson, Rebecca L. Gibson
  • Multi-scallop bowl with wicker appearance
    Patent number: D788535
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 6, 2017
    Assignee: Decra Stone, Inc.
    Inventors: Sheryl F. Knutson, Ethelyn M. Knutson, Rebecca L. Gibson
  • Rectangular food container with wicker appearance
    Patent number: D788536
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 6, 2017
    Assignee: Decra Stone, Inc.
    Inventors: Sheryl F. Knutson, Ethelyn M. Knutson, Rebecca L. Gibson
  • Food tray with wicker appearance
    Patent number: D788537
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 6, 2017
    Assignee: Decra Stone, Inc.
    Inventors: Sheryl F. Knutson, Ethelyn M. Knutson, Rebecca L. Gibson
  • Container with wicker appearance
    Patent number: D789151
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 13, 2017
    Assignee: Decra Stone, Inc.
    Inventors: Sheryl F. Knutson, Ethelyn M. Knutson, Rebecca L. Gibson