Portion of staircase

Details Portion of staircase Portion of staircase

2006-07-17

2008-03-04

Clark, Doris (Department: 2914)

Building units and construction elements

Stair, ladder, scaffold, or similar support

Element or attachment

Design Patent

active

D0563565

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

REFERENCES:
patent: 4151320 (1979-04-01), Naka
patent: 4322927 (1982-04-01), Scott
patent: 4985095 (1991-01-01), Riddle
patent: 5357724 (1994-10-01), Sonoda
patent: D363785 (1995-10-01), Davies
patent: D415289 (1999-10-01), Dalton
patent: 6082061 (2000-07-01), Ryan
patent: 6173540 (2001-01-01), Spivey
patent: D463039 (2002-09-01), Tseng
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.

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