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Patent
D648280
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Priority
Oct 27 2010
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Filed
Oct 27 2010
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Issued
Nov 08 2011
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Expiry
Nov 08 2025
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Assg.orig
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Entity
unknown
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10
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10
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n/a
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The ornamental design for a grounding spring, as shown and described.
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FIG. 1 is a perspective view of a grounding spring showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear 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 top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
Zhang, Hong-Tu, Chen, Ping-Chih, Chen, Ming-Chiang
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| Patent |
Priority |
Assignee |
Title |
| 6065980, |
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| 6293833, |
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| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a