IP Library › Granted Patent US D446,577
Granted Patent Design
US D446,577 · Confirmation No. 7498

Air purifier

Patented Case View Patent ↗
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 Code Description Pages PDF
2001-02-23 TRNA Transmittal of New Application 11 View
2001-02-23 SPEC Specification 2 View
2001-02-23 DRW Drawings-only black and white line drawings 4 View
2001-02-23 OATH Oath or Declaration filed 9 View
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Quick Facts
Patent No.
US D446,577
App. No.
29/137,511
Filed
2001-02-23
Granted
2001-08-14
Art Unit
2911
PTA
0 days