USD441449SExpiredUtility

Air flow filter for use in testing or treatment of the respiratory function of patients

69
Assignee: RJ & VK BIRD PTY LTDPriority: Oct 12, 1999Filed: Apr 12, 2000Granted: May 1, 2001
Est. expiryOct 12, 2019(expired)· nominal 20-yr term from priority
Inventors:John Gaskell
69
PatentIndex Score
20
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an air flow filter for use in testing or treatment of the respiratory function of patients, as shown and described.

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