USD447179SExpiredUtility

Language learning device

33
Priority: Dec 1, 2000Filed: Dec 1, 2000Granted: Aug 28, 2001
Est. expiryDec 1, 2020(expired)· nominal 20-yr term from priority
Inventors:Tsasa Lusala
33
PatentIndex Score
8
Cited by
12
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a language learning device, as shown and described.

Join the waitlist — get patent alerts

Track USD447179S — get alerts on status changes and closely related new filings.

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