USD253365SExpiredUtility

Ball valve

45
Assignee: AB KALLE REGULATORERPriority: Oct 25, 1976Filed: Apr 22, 1977Granted: Nov 6, 1979
Est. expiryOct 25, 1996(expired)· nominal 20-yr term from priority
Inventors:Gustav B. Nyberg
45
PatentIndex Score
6
Cited by
9
References
1
Claims

Claims

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

Join the waitlist — get patent alerts

Track USD253365S — get alerts on status changes and closely related new filings.

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