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Patent
D799063
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Priority
May 20 2016
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Filed
May 20 2016
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Issued
Oct 03 2017
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Expiry
Oct 03 2032
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Assg.orig
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Entity
unknown
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4
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7
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n/a
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The ornamental design for an extension ladder, as shown and described.
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FIG. 1 is a perspective view of an extension ladder showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is left side elevation view thereof;
FIG. 5 is right side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
Yin, Yelin
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