Stackable wall block
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Description
The broken lines appearing in the figures are not intended to form part of the claimed design and are provided for illustrative purposes only.
Claims
I claim the ornamental design for a stackable wall block, as shown.
Referenced Cited
U.S. Patent Documents
Other references
1260024 | March 1918 | Parton |
1795451 | March 1931 | Sharpe |
1816916 | August 1931 | Sentrop |
5622456 | April 22, 1997 | Risi et al. |
5647185 | July 15, 1997 | Forlini |
D403437 | December 29, 1998 | Risi et al. |
D405193 | February 2, 1999 | Scales |
D466229 | November 26, 2002 | Risi et al. |
D479342 | September 2, 2003 | Dawson |
6651401 | November 25, 2003 | Price et al. |
D485371 | January 13, 2004 | Burgess et al. |
7059808 | June 13, 2006 | Risi |
7096635 | August 29, 2006 | Price |
- “Classic” product literature, Rockwood Retaining Walls, 12 pgs., 1997.
Patent History
Patent number: D551360
Type: Grant
Filed: May 19, 2006
Date of Patent: Sep 18, 2007
Assignee: Mortarless Technologies LLC (Rochester, MN)
Inventor: Brian A Price (Rochester, MN)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: G. Andoll
Attorney: Patterson, Thuente, Skaar & Christensen, P.A.
Application Number: 29/260,137
Type: Grant
Filed: May 19, 2006
Date of Patent: Sep 18, 2007
Assignee: Mortarless Technologies LLC (Rochester, MN)
Inventor: Brian A Price (Rochester, MN)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: G. Andoll
Attorney: Patterson, Thuente, Skaar & Christensen, P.A.
Application Number: 29/260,137
Classifications
Current U.S. Class:
Construction Block Or Brick Type (17) (D25/113)