USD462754SExpiredUtility

Room air purifier device

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Assignee: HEALTHWAY PRODUCTS COMPANY INCPriority: Aug 13, 1999Filed: Aug 13, 1999Granted: Sep 10, 2002
Est. expiryAug 13, 2019(expired)· nominal 20-yr term from priority
Inventors:Richard T. BriggsWilliam SchuettenbergWilliam O'HaraVincent G. LobdellMax BablokScott W. OsieckiRobert S. EnglertGregg W. Harvey
85
PatentIndex Score
35
Cited by
1
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a room air purifier device, as shown.

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