USD384147SExpiredUtility

Respiratory face mask

46
Assignee: AB ASTRAPriority: Sep 27, 1993Filed: Mar 25, 1994Granted: Sep 23, 1997
Est. expirySep 27, 2013(expired)· nominal 20-yr term from priority
Inventors:Jan KarlssonCarin Widerstrom
46
PatentIndex Score
5
Cited by
13
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a respiratory face mask, as shown and described.

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