IP Library › Patent Application 09958936
Patent Application Utility PCT National Stage Small
App. No. 09/958,936 · Confirmation No. 6831

PROCESS FOR THE PRODUCTION OF FURFURAL FROM LIGNOSULPHONATE WASTE LIQUOR

Inventor: Karl J. Zeitsch
Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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2003-07-08 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-01-14 ABST Abstract 1 View
2002-01-14 LET. Miscellaneous Incoming Letter 16 View
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Quick Facts
App. No.
09/958,936
Filed
2002-01-14
Effective Filing
2001-10-16
Granted
2003-11-04
Art Unit
1625
PTA
0 days