USD310585SExpiredUtility

Protective cap for a respirator's replaceable filter

54
Assignee: SIEBE NORTH INCPriority: Apr 29, 1987Filed: Apr 29, 1987Granted: Sep 11, 1990
Est. expiryApr 29, 2007(expired)· nominal 20-yr term from priority
Inventors:William E. Newcomb
54
PatentIndex Score
9
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a protective cap for a respirator's replaceable filter, as shown and described.

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