Patents by Inventor Charles Risdall

Charles Risdall 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).

  • Seating system
    Patent number: 10568431
    Abstract: A seating system configured for providing multi-directional motion.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: February 25, 2020
    Assignee: Smith System Manufacturing Company Inc.
    Inventors: Charles Risdall, Michael Risdall, Charles A. Patterson, Joe Ricchio
  • Seating system
    Patent number: 10258160
    Abstract: A seating system configured for providing multi-directional motion.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: April 16, 2019
    Assignee: Smith System Manufacturing Company Inc.
    Inventors: Charles Risdall, Michael Risdall, Charles A Patterson, Joe Ricchio
  • Seating System
    Publication number: 20180213938
    Abstract: A seating system configured for providing multi-directional motion.
    Type: Application
    Filed: February 1, 2017
    Publication date: August 2, 2018
    Applicant: Smith System Manufacturing Company Inc.
    Inventors: Charles Risdall, Michael Risdall, Charles A. Patterson, Joe Ricchio
  • Hanger device for furniture with y-shaped legs
    Publication number: 20030075084
    Abstract: The invention is designed for use with a table or desk supported by a pair of legs. The bottom portion of each leg is configured with a stem and a foot extending perpendicular to the stem. The top portion of each leg is configured in a y-shape having a first branch, a second branch and a trunk. The first and second branches extend up from the trunk and support the flat surface of the table or desk. A hanger device is located on either the first branch or the second branch and extends towards the flat surface. Placement of the hanger device on a branch of the y-shaped portion causes a load suspended from the hanger device to be supported primarily by the trunk and a moment caused by the load to be offset by the moment caused by the foot of each leg.
    Type: Application
    Filed: October 18, 2001
    Publication date: April 24, 2003
    Inventor: Charles Risdall
  • Y-component with peg for a student desk
    Patent number: D470349
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: February 18, 2003
    Assignee: Smith System Manufacturing Company
    Inventor: Charles Risdall
  • Chair
    Patent number: D426973
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: June 27, 2000
    Assignee: Smith System Manufacturing Company
    Inventor: Charles Risdall
  • Reinforced chair
    Patent number: D427444
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: July 4, 2000
    Assignee: Smith System Manufacturing Company
    Inventor: Charles Risdall
  • Kidney-shaped table
    Patent number: D431939
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: October 17, 2000
    Assignee: Smith System Manufacturing Company
    Inventor: Charles Risdall
  • Rectangular table
    Patent number: D432334
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: October 24, 2000
    Assignee: Smith System Manufacturing Company
    Inventor: Charles Risdall
  • Rocker stool
    Patent number: D837543
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: January 8, 2019
    Assignee: Smith System Manufacturing Company Inc.
    Inventors: Charles Risdall, Michael Risdall, Charles A Patterson, Joe Ricchio