USD452911SExpiredUtility

Respiratory filter

Assignee: PHARMA SYSTEMS PS ABPriority: Sep 7, 2000Filed: Mar 6, 2001Granted: Jan 8, 2002

Est. expirySep 7, 2020(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

The ornamental design for a respiratory filter, as shown and described.

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