IP Library › Granted Patent US 6,442,791
Granted Patent Utility PCT National Stage
US 6,442,791 · Confirmation No. 7723

VACUUM CLEANER

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2001-04-06 LET. Miscellaneous Incoming Letter 30 View
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Quick Facts
Patent No.
US 6,442,791
App. No.
09/806,919
Filed
2001-04-06
Granted
2002-09-03
Art Unit
1744
PTA
0 days