Patents by Inventor Richard D. Walston

Richard D. Walston 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).

  • Stair system
    Patent number: 9422726
    Abstract: A stair system (20; 300) comprises: a first length-adjustable stringer (40A; 308A); a second length-adjustable stringer (40B; 308B); and a plurality of tread assemblies (148; 350) installable to the first and second stringers. The system further includes at least one handrail (268; 302A, 302B). A plurality of balusters (280A, 280B; 360, 362) are attached or attachable to the tread assemblies and handrail. The tread assemblies each have an adjustable tread pitch.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: August 23, 2016
    Assignee: BECKM, LLC
    Inventor: Richard D. Walston
  • Stair System
    Publication number: 20130239496
    Abstract: A stair system (20; 300) comprises: a first length-adjustable stringer (40A; 308A); a second length-adjustable stringer (40B; 308B); and a plurality of tread assemblies (148; 350) installable to the first and second stringers. The system further includes at least one handrail (268; 302A, 302B). A plurality of balusters (280A, 280B; 360, 362) are attached or attachable to the tread assemblies and handrail. The tread assemblies each have an adjustable tread pitch.
    Type: Application
    Filed: October 27, 2011
    Publication date: September 19, 2013
    Applicant: BECKM, LLC
    Inventor: Richard D. Walston