USD284022SExpiredUtility

Backing ring for a pipe coupling

79
Assignee: CANRON INCPriority: Mar 29, 1983Filed: Sep 9, 1983Granted: May 27, 1986
Est. expiryMar 29, 2003(expired)· nominal 20-yr term from priority
Inventors:Laverne J. MilotKenneth D. Werbowy
79
PatentIndex Score
23
Cited by
7
References
1
Claims

Claims

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

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