USD426298SExpiredUtility

Full-face respirator lens

71
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Jul 20, 1998Filed: Jul 20, 1998Granted: Jun 6, 2000
Est. expiryJul 20, 2018(expired)· nominal 20-yr term from priority
Inventors:Vaughn B. GrannisDavid P. KnivslandJoseph G. ReischelGerald M. BrostromDavid C. Byram
71
PatentIndex Score
16
Cited by
57
References
1
Claims

Claims

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

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