USD480453SExpiredUtility
Recessed spiral spline seat male pipe coupling
Est. expiryDec 5, 2022(expired)· nominal 20-yr term from priority
Inventors:John T. Filer
61
PatentIndex Score
14
Cited by
17
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a recessed spiral spline seat male pipe coupling, as shown and described.
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