IP Library Patent Application 09949884
Patent Application Utility
App. No. 09/949,884 · Confirmation No. 1389

PACKED COLUMN FOR EXCHANGING HEAT AND/OR MASS

Inventor: Etienne Werlen
Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
⬇ PDF
Code Description Pages PDF
2003-11-13 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-09-25 LET. Miscellaneous Incoming Letter 1 View
2003-09-25 DRW Drawings-only black and white line drawings 1 View
2001-09-12 TRNA Transmittal of New Application 2 View
2001-09-12 ADS Application Data Sheet 1 View
2001-09-12 SPEC Specification 9 View
2001-09-12 CLM Claims 3 View
2001-09-12 ABST Abstract 1 View
2001-09-12 DRW Drawings-only black and white line drawings 2 View
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Quick Facts
App. No.
09/949,884
Filed
2001-09-12
Granted
2004-01-06
Pub. No.
US20020050657A1
Art Unit
1724
PTA
-28 days