Stair tread having a slip-resistant surface

- Harsco Corporation
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Description

FIG. 1 is a perspective view of the stair tread having a slip-resistant surface;

FIG. 2 is a left elevation view of the stair tread having a slip-resistant surface;

FIG. 3 is a front elevation view of the stair tread having a slip-resistant surface;

FIG. 4 is a rear elevation view of the stair tread having a slip-resistant surface;

FIG. 5 is a top plan view of the stair tread having a slip-resistant surface; and,

FIG. 6 is a bottom plan view of the stair tread having a slip-resistant surface.

Referenced Cited
U.S. Patent Documents
195504 September 1877 Gustafson
D195504 June 1963 Waite
4285177 August 25, 1981 Seegers
Other references
  • "Mebec Nosings and Stair Treads" by IKG Borden Published in Old Bridge, CT, USA on May 23, 1991.
Patent History
Patent number: D389588
Type: Grant
Filed: Nov 8, 1996
Date of Patent: Jan 20, 1998
Assignee: Harsco Corporation (Camp Hill, PA)
Inventor: Robert T. Dunk (Brentwood, TN)
Primary Examiner: Doris Clark
Law Firm: Eckert Seamans Cherin & Mellott
Application Number: 0/62,185
Classifications
Current U.S. Class: Stair Tread, Step Or Ladder Rung (D25/69)
International Classification: 2504;