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Patent
D734470
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Priority
Dec 13 2013
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Filed
Dec 13 2013
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Issued
Jul 14 2015
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Expiry
Jul 14 2029
TERM.DISCL.
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Assg.orig
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Entity
unknown
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4
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52
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n/a
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The ornamental design for a vision assessment chart, as shown and described.
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FIG. 1 is a front elevational view of a vision assessment chart according to an embodiment;
FIG. 2 is a top side elevational view of the vision assessment chart of FIG. 1, with the left, right and bottom sides being identical thereto;
FIG. 3 is a front elevational view of a vision assessment chart according to another embodiment; and,
FIG. 4 is a top side elevational view of the vision assessment chart of FIG. 3, with the left, right and bottom sides being identical thereto.
In the drawings, the broken lines depict environmental subject matter only and form no part of the claimed design.
Zhang, Fuxiang
Patent |
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Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a