USD422705SExpiredUtility
Retractor for heart valve surgery
Individually held — no corporate assignee on recordPriority: Feb 24, 1999Filed: Feb 24, 1999Granted: Apr 11, 2000
Est. expiryFeb 24, 2019(expired)· nominal 20-yr term from priority
94
PatentIndex Score
47
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a retractor for heart valve surgery substantially, as shown and described.
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