USD513074SExpiredUtility

Oxygen concentrator

89
Assignee: MATSUSHITA ELECTRIC INDUSTRIAL CO LTDPriority: Mar 8, 2004Filed: Mar 8, 2004Granted: Dec 20, 2005
Est. expiryMar 8, 2024(expired)· nominal 20-yr term from priority
Inventors:Minoru NakamuraOsamu Kondo
89
PatentIndex Score
37
Cited by
9
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an oxygen concentrator, as shown and described.

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