USD503251SExpiredUtility
Vacuum cleaner
Est. expiryOct 3, 2023(expired)· nominal 20-yr term from priority
Inventors:Tristan M. Christianson
81
PatentIndex Score
25
Cited by
7
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a vacuum cleaner, as shown and described.
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