USD382152SExpiredUtility
Top portion of a spring core
Est. expiryMar 15, 2016(expired)· nominal 20-yr term from priority
Inventors:Henry R. Ramsey
47
PatentIndex Score
6
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17
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a top portion of a spring core, as shown and described.
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