IP Library › Granted Patent US 6,735,817
Granted Patent Utility
US 6,735,817 · Confirmation No. 5785

UPRIGHT VACUUM CLEANER WITH CYCLONIC AIR FLOW

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Quick Facts
Patent No.
US 6,735,817
App. No.
10/094,675
Filed
2002-03-11
Granted
2004-05-18
Pub. No.
US20020095742A1
Art Unit
1744
PTA
-172 days