USD400661SExpiredUtility

Electronic air purifier

Assignee: KO LI-SHENGPriority: Jan 8, 1998Filed: Jan 8, 1998Granted: Nov 3, 1998

Est. expiryJan 8, 2018(expired)· nominal 20-yr term from priority

PatentIndex Score

Cited by

References

Claims

exact text as granted — not AI-modified

The ornamental design for an electronic air purifier, as shown.

Join the waitlist — get patent alerts

Track USD400661S — get alerts on status changes and closely related new filings.

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