IP Library › Granted Patent US 6,726,020
Granted Patent Utility PCT National Stage
US 6,726,020 · Confirmation No. 7953

METHOD AND DEVICE FOR A DRY CLEASING PLANT FOR ALUMINIUM REDUCTION FURNACES EXHAUST GAS

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2004-03-08 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-01-22 LET. Miscellaneous Incoming Letter 1 View
2004-01-22 DRW Drawings-only black and white line drawings 2 View
2001-05-14 LET. Miscellaneous Incoming Letter 20 View
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Quick Facts
Patent No.
US 6,726,020
App. No.
09/787,317
Filed
2001-05-14
Granted
2004-04-27
Art Unit
3653
PTA
0 days