USD572360SExpiredUtility

Breathing air filtration device

72
Assignee: DOLEZAL CREATIVE INNOVATIONS LPriority: Mar 19, 2004Filed: Sep 29, 2005Granted: Jul 1, 2008
Est. expiryMar 19, 2024(expired)· nominal 20-yr term from priority
Inventors:David M. DolezalJohn D. WilderDaniel M. Gelfman
72
PatentIndex Score
17
Cited by
71
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a breathing air filtration device, as shown.

Join the waitlist — get patent alerts

Track USD572360S — get alerts on status changes and closely related new filings.

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