Portion of staircase

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Description

FIG. 1 is a perspective view of a portion of a staircase; and,

FIG. 2 is a top plan view of the portion of a staircase shown in FIG. 1.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.

Claims

I claim the ornamental design for a portion of a staircase, as shown and described.

Referenced Cited
U.S. Patent Documents
4151320 April 24, 1979 Naka
4322927 April 6, 1982 Scott
4985095 January 15, 1991 Riddle
5357724 October 25, 1994 Sonoda
D363785 October 31, 1995 Davies
D415289 October 12, 1999 Dalton
6082061 July 4, 2000 Ryan
6173540 January 16, 2001 Spivey
D463039 September 17, 2002 Tseng
Other references
  • Pages of McNichols Co. website, “Expanded Grating Stair Treads—Standard Unitread®,” http://www.mcnichols.com/products/stairtreads/expanded/ (2 pages) copyright 2006.
  • Pages of Loxcreen Company, Inc. website, “Bengard Floor Moulding—Aluminum Stair Nosing,” http://www.loxcreen.com/floor/bengardfloor—stairnosing.htm (3 pages) 2003.
  • Wooster Products, Inc. specification sheet for Abrasive Cast Safety Treads and Nosings—Type 100, Jan. 2005 (1 page).
  • Wooster Products, Inc. specification sheet for Abrasive Cast Safety Treads and Nosings—Type 101, Jan. 2005 (1 page).
  • Wooster Products, Inc. specification sheet for Spectra® Safety Treads—Type WP24, Oct. 2003 (1 page).
  • Wooster Products, Inc. specification sheet for Spectra® Safety Treads—Type WP3C, Feb. 2003 (1 page).
  • Wooster Products, Inc. sales bulletin, “Spectra® Safety Treads” (1 page) Jan. 2005.
Patent History
Patent number: D563565
Type: Grant
Filed: Jul 17, 2006
Date of Patent: Mar 4, 2008
Inventor: William Gardner (Salem, OR)
Primary Examiner: Doris Clark
Attorney: Klarquist Sparkman, LLP
Application Number: 29/263,199
Classifications
Current U.S. Class: Stair Tread, Step Or Ladder Rung (D25/69)