USD351226SExpiredUtility
Adjustable oxygen face mask
Individually held — no corporate assignee on recordPriority: Oct 20, 1993Filed: Oct 20, 1993Granted: Oct 4, 1994
Est. expiryOct 20, 2013(expired)· nominal 20-yr term from priority
Inventors:Regina K. Parvatharaj
66
PatentIndex Score
22
Cited by
7
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an adjustable oxygen face mask, as shown and described.
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