USD413791SExpiredUtility

Tightening ring apparatus

75
Assignee: MAY AARONPriority: May 13, 1997Filed: May 13, 1997Granted: Sep 14, 1999
Est. expiryMay 13, 2017(expired)· nominal 20-yr term from priority
Inventors:Aaron May
75
PatentIndex Score
23
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a tightening ring apparatus, as shown and described.

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