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App. No. 10/326,111 · Confirmation No. 2208

METHOD FOR REMOVING IMPURITY CONTENTS IN THE AIR

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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 Code Description Pages PDF
2003-09-17 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-12-23 TRNA Transmittal of New Application 2 View
2002-12-23 A.PE Preliminary Amendment 6 View
2002-12-23 SPEC Specification 12 View
2002-12-23 CLM Claims 2 View
2002-12-23 ABST Abstract 1 View
2002-12-23 DRW Drawings-only black and white line drawings 2 View
2002-12-23 OATH Oath or Declaration filed 8 View
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Quick Facts
App. No.
10/326,111
Filed
2002-12-23
Granted
2003-11-11
Pub. No.
US20030089242A1
Examiner
SMITH, DUANE
Art Unit
1724
PTA
0 days