USD303585SExpiredUtility

Respirator facepiece

Assignee: AMERICAN CYANAMID COPriority: Oct 17, 1986Filed: Oct 17, 1986Granted: Sep 19, 1989
Est. expiryOct 17, 2006(expired)· nominal 20-yr term from priority
71
PatentIndex Score
15
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a respirator facepiece, as shown and described.

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