IP Library › Granted Patent US 6,619,574
Granted Patent Utility PCT National Stage
US 6,619,574 · Confirmation No. 9487

METHOD FOR VERIFYING THE FILLING LEVEL OF COAL IN A BALL MILL

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2003-07-08 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-01-09 ABST Abstract 1 View
2002-01-09 LET. Miscellaneous Incoming Letter 26 View
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Quick Facts
Patent No.
US 6,619,574
App. No.
09/958,484
Filed
2002-01-09
Effective Filing
2001-10-11
Granted
2003-09-16
Art Unit
3725
PTA
0 days