Title:
Manhole step
Document Type and Number:
United States Patent D839451

Inventors:
Chlopecki, Kenneth John (Mechanicville, NY, US)
Application Number:
29/622421
Publication Date:
01/29/2019
Filing Date:
10/17/2017
View Patent Images:
Assignee:
M.A. Industries, Inc. (Peachtree City, GA, US)
Primary Class:
International Classes:
(IPC1-7): 2504
Field of Search:
D25/62-69, 182/90, 182/92
US Patent References:
D556917Two sided manhole step2007-12-04PeacockD25/69
D490907Two-sided manhole step2004-06-01Peacock et al.
D452742Step for climbing wall surface2002-01-01TakahashiD25/69
D435118Step for climbing wall surfaceDecember, 2000TakahashiD25/69
6125967Foothold2000-10-03Takahashi182/129
D429002Step for climbing wall surfaceAugust, 2000TakahashiD25/69
D429003Step for climbing wall surfaceAugust, 2000TakahashiD25/69
6068083Foothold2000-05-30Takahashi182/90
5967256Foothold1999-10-19Takahashi182/90
5944140Foothold provided with reflectors1999-08-31Takahashi182/129
D304376Manhole stepOctober, 1989RobertsonD25/69
4869342Drive in manhole step1989-09-26Borst182/90
4655318Step assembly1987-04-07Bowen182/228.1
4610330Drive-in manhole step construction1986-09-09Borst182/90
4100997Step construction employing insertable fastener having deformable projections1978-07-18Peacock182/90
Primary Examiner:
Ramirez, Cynthia
Assistant Examiner:
Colan, Gino
Attorney, Agent or Firm:
Kilpatrick Townsend & Stockton LLP
Claims:
CLAIM

1. The ornamental design for a manhole step, as shown and described.

Description:

FIG. 1 is an isometric view of the manhole step.

FIG. 2 is another isometric view of the manhole step of FIG. 1.

FIG. 3 is a top view of the manhole step of FIG. 1.

FIG. 4 is a right side view of the manhole step of FIG. 1.

FIG. 5 is a bottom view of the manhole step of FIG. 1.

FIG. 6 is a left side view of the manhole step of FIG. 1.

FIG. 7 is a front view of the manhole step of FIG. 1; and,

FIG. 8 is a rear view of the manhole step of FIG. 1.

The broken lines in the drawings denote environmental structure that form no part of the claimed design.