USD313890SExpiredUtility
Electric scrubbing brush
Individually held — no corporate assignee on recordPriority: Apr 17, 1987Filed: Oct 15, 1987Granted: Jan 22, 1991
Est. expiryApr 17, 2007(expired)· nominal 20-yr term from priority
Inventors:Robert M. Machuron
87
PatentIndex Score
30
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an electric scrubbing brush, as shown.
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