USD297254SExpiredUtility

Ball valve

84
Assignee: SEKISUI CHEMICAL CO LTDPriority: Jan 29, 1985Filed: Jun 28, 1985Granted: Aug 16, 1988
Est. expiryJan 29, 2005(expired)· nominal 20-yr term from priority
Inventors:Masayoshi OdateMitsuharu Hashimoto
84
PatentIndex Score
28
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a ball valve, as shown and described.

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