USD471981SExpiredUtility

Heart valve stiffening ring

30
Assignee: REPUBLIC MEDICAL PRODUCTS INCPriority: Sep 3, 1997Filed: Sep 3, 1997Granted: Mar 18, 2003
Est. expirySep 3, 2017(expired)· nominal 20-yr term from priority
Inventors:Thomas Reif
A61F 2/2409
30
PatentIndex Score
3
Cited by
12
References
1
Claims

Claims

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

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