USD632158SActiveUtility

Ground spring

70
Assignee: CHENG UEI PREC IND CO LTDPriority: Mar 31, 2010Filed: Mar 31, 2010Granted: Feb 8, 2011
Est. expiryMar 31, 2030(~3.7 yrs left)· nominal 20-yr term from priority
Inventors:Bing-Tao YangYin-Lung WuMing-Chiang Chen
70
PatentIndex Score
16
Cited by
13
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a ground spring, as shown and described.

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