USD448472SExpiredUtility

Respiratory mask

84
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Feb 17, 1999Filed: Feb 17, 1999Granted: Sep 25, 2001
Est. expiryFeb 17, 2019(expired)· nominal 20-yr term from priority
Inventors:Daniel T. Chen
84
PatentIndex Score
29
Cited by
10
References
1
Claims

Claims

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

Cited by (0)

No later patents cite this yet.

References (0)

No backward citations on record.