USD620104SExpiredUtility

Personal respiratory protection device

94
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Nov 25, 1996Filed: Nov 25, 1996Granted: Jul 20, 2010
Est. expiryNov 25, 2016(expired)· nominal 20-yr term from priority
Inventors:Desmond T. CurranJohn W. BryantChristopher P. Henderson
94
PatentIndex Score
39
Cited by
34
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for personal respiratory protection device, as shown and described.

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