USD441440SExpiredUtility

Dust cassette assembly

31
Assignee: MINE SAFETY APPLIANCES COPriority: Apr 28, 2000Filed: Apr 28, 2000Granted: May 1, 2001
Est. expiryApr 28, 2020(expired)· nominal 20-yr term from priority
Inventors:Richard J. Hartman
31
PatentIndex Score
2
Cited by
1
References
1
Claims

Claims

exact text as granted — not AI-modified
I claim the ornamental design for a dust cassette assembly, as shown and described.

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