IP Library Granted Patent US 6,584,979
Granted Patent Utility
US 6,584,979 · Confirmation No. 9984

HIGH EFFICIENCY CIGARETTE FILTERS HAVING SHAPED MICROCAVITY FIBERS IMPREGNATED WITH ADSORBENT OR ABSORBENT MATERIALS

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Code Description Pages PDF
2001-04-20 TRNA Transmittal of New Application 7 View
2001-04-20 SPEC Specification 38 View
2001-04-20 CLM Claims 3 View
2001-04-20 ABST Abstract 1 View
2001-04-20 DRW Drawings-only black and white line drawings 11 View
2001-04-20 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,584,979
App. No.
09/839,669
Filed
2001-04-20
Granted
2003-07-01
Pub. No.
US20020020420A1
Art Unit
1731
PTA
-108 days