Manhole riser sleeve

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Description

FIG. 1 is a front-left-top perspective view of a manhole riser sleeve showing my new design.

FIG. 2 is a right side elevational view of the manhole riser sleeve.

FIG. 3 is a left side elevational view of the manhole riser sleeve.

FIG. 4 is a front-left perspective view of the manhole riser sleeve.

FIG. 5 is a front plan view of the manhole riser sleeve; and,

FIG. 6 is a back plan view of the manhole riser sleeve.

Claims

The ornamental design for a manhole riser sleeve, as shown and described.

Referenced Cited
U.S. Patent Documents
4310372 January 12, 1982 Janssen
4352512 October 5, 1982 Janssen
4850136 July 25, 1989 Vollers
5608998 March 11, 1997 Hume
5800648 September 1, 1998 House
5876533 March 2, 1999 House
6047724 April 11, 2000 Nurse, Jr.
6773206 August 10, 2004 Bradley
7347644 March 25, 2008 Meyers
7627992 December 8, 2009 Gavin
7966786 June 28, 2011 Koteskey
8813447 August 26, 2014 Sabillon
11021848 June 1, 2021 McKinney
20040261343 December 30, 2004 Koteskey
20100242377 September 30, 2010 Koteskey
20120317891 December 20, 2012 Koteskey
Foreign Patent Documents
2 778 146 November 2012 CA
Other references
  • Riser Wrap, available in wilbert.ca, announced: undated product page [online], [site visited Dec. 8, 2022], Internet URL:https://www.wilbert.ca/wp-content/uploads/2020/11/AWS_RISER_WRAP_INFO.pdf (Year: 2022).
Patent History
Patent number: D984499
Type: Grant
Filed: Mar 10, 2021
Date of Patent: Apr 25, 2023
Assignee: ALBERTA WILBERT SALES LTD (Edmonton)
Inventor: David Dallaire (Edmonton)
Primary Examiner: Calvin E Vansant
Assistant Examiner: Eidiol Ghigliotty Torres
Application Number: 29/773,525
Classifications
Current U.S. Class: Molding Or Casting (D15/135)