USD299162SExpiredUtility

Corrugated drain pipe

46
Assignee: VASBY INNOVATIONSPRODUKTER ABPriority: Aug 22, 1984Filed: Feb 20, 1985Granted: Dec 27, 1988
Est. expiryAug 22, 2004(expired)· nominal 20-yr term from priority
Inventors:Bo Fredblad
46
PatentIndex Score
10
Cited by
11
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a corrugated drain pipe, as shown and described.

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