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Patent
   D812781
Priority
Jul 21 2016
Filed
Jul 21 2016
Issued
Mar 13 2018
Expiry
Mar 13 2033
Inventors
Lundell, R…
Assg.orig
KEYSTONE R…
Assg.curr
KEYSTONE R…
Entity
unknown
Referenced by
8
References
61
Maint.:
n/a
The ornamental design for a wall block, as shown and described.

FIG. 1 is a top perspective view of a wall block;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a rear side elevational view thereof.

The broken lines in the figures depict portions of the wall block that form no part of the claimed design.
INVENTORS:

Lundell, Robert John, MacDonald, Robert A.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
10760269, Oct 25 2017 KEYSTONE RETAINING WALL SYSTEMS LLC Retaining wall block and retaining wall block system
10760281, Jul 21 2016 KEYSTONE RETAINING WALL SYSTEMS LLC Veneer connectors, wall blocks, veneer panels for wall blocks, and walls
11598094, Oct 25 2017 KEYSTONE RETAINING WALL SYSTEMS LLC Retaining wall block and retaining wall block system
D846760, Oct 25 2017 KEYSTONE RETAINING WALL SYSTEMS LLC Wall block
D877653, Sep 18 2017 KEYSTONE RETAINING WALL SYSTEMS LLC Planter block
ER8059,
ER8488,
ER9500,
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ASSIGNMENT RECORDS    Assignment records on the USPTO
//////////////////////////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 21 2016KEYSTONE RETAINING WALL SYSTEMS LLC(assignment on the face of the patent)
Oct 28 2016MACDONALD, ROBERT A KEYSTONE RETAINING WALL SYSTEMS LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0421500508 pdf
Oct 31 2016LUNDELL, ROBERT JOHNKEYSTONE RETAINING WALL SYSTEMS LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0421500508 pdf
Mar 18 2022KEYSTONE RETAINING WALL SYSTEMS LLCWELLS FARGO BANK, N A , AS AGENTSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0594370933 pdf
Mar 18 2022KEYSTONE RETAINING WALL SYSTEMS LLCWells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022CONTECH ENGINEERED SOLUTIONS LLCWells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022Pavestone, LLCWells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022BEST BLOCK, LLCWells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022FORTERRA PRECAST CONCEPTS, LLCWells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022FORTERRA CONCRETE PRODUCTS, INC Wells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022United States Pipe and Foundry Company, LLCWells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022GRIFFIN PIPE PRODUCTS CO , LLCWells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022CUSTOM FAB, INC Wells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022Bio Clean Environmental Services, IncWells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022MODULAR WETLAND SYSTEMS, INC Wells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Mar 18 2022Forterra Pipe & Precast, LLCWells Fargo Bank, National Association, As AgentPATENT SECURITY AGREEMENT ABL 0594790437 pdf
Feb 10 2025United States Pipe and Foundry Company, LLCU S BANK TRUST COMPANY, NATIONAL ASSOCIATIONPATENT SECURITY AGREEMENT0701700919 pdf
Feb 10 2025THE QUIKRETE COMPANIES, LLCU S BANK TRUST COMPANY, NATIONAL ASSOCIATIONPATENT SECURITY AGREEMENT0701700919 pdf
Feb 10 2025Pavestone, LLCU S BANK TRUST COMPANY, NATIONAL ASSOCIATIONPATENT SECURITY AGREEMENT0701700919 pdf
Feb 10 2025KEYSTONE RETAINING WALL SYSTEMS LLCU S BANK TRUST COMPANY, NATIONAL ASSOCIATIONPATENT SECURITY AGREEMENT0701700919 pdf
Feb 10 2025Forterra Pipe & Precast, LLCU S BANK TRUST COMPANY, NATIONAL ASSOCIATIONPATENT SECURITY AGREEMENT0701700919 pdf
Feb 10 2025FORTERRA CONCRETE PRODUCTS, LLCU S BANK TRUST COMPANY, NATIONAL ASSOCIATIONPATENT SECURITY AGREEMENT0701700919 pdf
Feb 10 2025CUSTOM BUILDING PRODUCTS, LLCU S BANK TRUST COMPANY, NATIONAL ASSOCIATIONPATENT SECURITY AGREEMENT0701700919 pdf
Feb 10 2025CONTECH ENGINEERED SOLUTIONS LLCU S BANK TRUST COMPANY, NATIONAL ASSOCIATIONPATENT SECURITY AGREEMENT0701700919 pdf
Feb 10 2025BEST BLOCK, LLCU S BANK TRUST COMPANY, NATIONAL ASSOCIATIONPATENT SECURITY AGREEMENT0701700919 pdf
Feb 10 2025USP HOLDINGS, LLCU S BANK TRUST COMPANY, NATIONAL ASSOCIATIONPATENT SECURITY AGREEMENT0701700919 pdf
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