USD449883SExpiredUtility
Oxygen delivery system
Est. expiryJan 24, 2021(expired)· nominal 20-yr term from priority
A61M 16/10A61M 16/0683A61M 16/06
81
PatentIndex Score
90
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Claims
exact text as granted — not AI-modifiedThe ornamental design for an oxygen delivery system, as shown and described.
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