USD378610SExpiredUtility

Full face respirator

98
Assignee: MINNESOTA MINING & MFGPriority: Oct 27, 1995Filed: Oct 27, 1995Granted: Mar 25, 1997
Est. expiryOct 27, 2015(expired)· nominal 20-yr term from priority
Inventors:Joseph G. ReischelDavid P. KnivslandGerald M. BrostromDavid C. ByramVaughn B. Grannis
98
PatentIndex Score
131
Cited by
49
References
1
Claims

Claims

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

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