USD267117SExpiredUtility
Breathing circuit filter
Est. expiryJul 22, 2000(expired)· nominal 20-yr term from priority
Inventors:David J. Rosenberg
80
PatentIndex Score
17
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a breathing circuit filter, substantially as shown.
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