USD261640SExpiredUtility
Coupling transformer
Est. expiryDec 8, 1998(expired)· nominal 20-yr term from priority
68
PatentIndex Score
10
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for the coupling transformer, as shown.
Join the waitlist — get patent alerts
Track USD261640S — get alerts on status changes and closely related new filings.
We store only your email — no account needed. See our privacy policy.