USD297971SExpiredUtility

Diaphragm valve

Assignee: SEKISUI CHEMICAL CO LTDPriority: Nov 26, 1984Filed: May 28, 1985Granted: Oct 4, 1988
Est. expiryNov 26, 2004(expired)· nominal 20-yr term from priority
82
PatentIndex Score
23
Cited by
8
References
1
Claims

Claims

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

Join the waitlist — get patent alerts

Track USD297971S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.