USD287654SExpiredUtility

Rotary drain cleaner

32
Individually held — no corporate assignee on recordPriority: Mar 22, 1984Filed: Mar 22, 1984Granted: Jan 6, 1987
Est. expiryMar 22, 2004(expired)· nominal 20-yr term from priority
Inventors:David A. Boelens
32
PatentIndex Score
2
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a rotary drain cleaner, as shown.

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