USD289998SExpiredUtility

Spark plug

8
Assignee: NICO PYROTECHNIK HANNS JUERGEN DIEDERICHS GMBH & COPriority: Feb 27, 1984Filed: Feb 27, 1984Granted: May 26, 1987
Est. expiryFeb 27, 2004(expired)· nominal 20-yr term from priority
Inventors:Willi L/U/ Bbers
8
PatentIndex Score
0
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
Theornamental design for a spark plug, as shown and described.

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