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Patent
D300862
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Priority
Apr 24 1986
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Filed
Apr 24 1986
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Issued
Apr 25 1989
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Expiry
Apr 25 2003
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Assg.orig
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Entity
unknown
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1
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4
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n/a
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The ornamental design for a building block, as shown and described.
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FIG. 1 is an perspective top view showing the top, front and right side of
the building block of this invention.
FIG. 2 is an perspective bottom view showing the bottom, back and left side
of the building block of this invention.
FIG. 3 is a side elevational view thereof;
FIG. 4 is a top plan view thereof; and
FIG. 5 is a top plan view of the right side of the block shown in FIG. 4.
Keller, Jr., Fred
Patent |
Priority |
Assignee |
Title |
2882689, |
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3435576, |
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4197669, |
Aug 01 1977 |
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Construction elements and assembled structures |
4429506, |
Apr 08 1982 |
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Interlocking building block |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a