IP Library › Granted Patent US 6,649,135
Granted Patent Utility PCT National Stage
US 6,649,135 · Confirmation No. 1349

METHOD OF COMBUSTION OR GASIFICATION IN A CIRCULATING FLUIDIZED BED

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2011-10-04 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-10-04 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-09-27 PA.. Power of Attorney 1 View
2011-09-27 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2011-09-27 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-09-09 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-13 LET. Miscellaneous Incoming Letter 1 View
2001-10-29 ABST Abstract 1 View
2001-10-29 LET. Miscellaneous Incoming Letter 18 View
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Quick Facts
Patent No.
US 6,649,135
App. No.
09/647,630
Filed
2001-10-29
Effective Filing
2000-09-29
Granted
2003-11-18
Art Unit
1754
PTA
0 days