USD409816SExpiredUtility
Combined ring and spring apparatus
Individually held — no corporate assignee on recordPriority: May 21, 1991Filed: May 21, 1991Granted: May 11, 1999
Est. expiryMay 21, 2011(expired)· nominal 20-yr term from priority
Inventors:Arnold A. Young
25
PatentIndex Score
5
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a combined ring and spring apparatus, as shown and described.
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