IP Library Patent Application 09806640
Patent Application Utility PCT National Stage
App. No. 09/806,640 · Confirmation No. 3029

TREATMENT OF EFFLUENTS

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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2001-06-25 LET. Miscellaneous Incoming Letter 30 View
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Quick Facts
App. No.
09/806,640
Filed
2001-06-25
Granted
2002-11-19
Art Unit
1754
PTA
0 days