IP Library › Patent Application 09890606
Patent Application Utility PCT National Stage
App. No. 09/890,606 · Confirmation No. 4710

GRAPHITE CATHODE FOR THE ELECTROLYSIS OF ALUMINIUM

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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2008-06-10 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2003-08-18 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-10-05 LET. Miscellaneous Incoming Letter 15 View
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Quick Facts
App. No.
09/890,606
Filed
2001-10-05
Effective Filing
2001-08-02
Granted
2003-09-30
Art Unit
1746
PTA
0 days