USD330846SExpiredUtility

Concrete pipe spacer

67
Assignee: WESTERN WIRE PRODUCTS COMPANYPriority: Oct 1, 1990Filed: Oct 1, 1990Granted: Nov 10, 1992
Est. expiryOct 1, 2010(expired)· nominal 20-yr term from priority
Inventors:Michael B. WoolledgeGene B. Young
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PatentIndex Score
21
Cited by
6
References
1
Claims

Claims

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

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