IP Library › Granted Patent US 6,679,945
Granted Patent Utility
US 6,679,945 · Confirmation No. 1476

PYROGENICALLY PREPARED SILICON DIOXIDE

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2003-11-28 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-08-17 TRNA Transmittal of New Application 1 View
2001-08-17 SPEC Specification 5 View
2001-08-17 CLM Claims 1 View
2001-08-17 ABST Abstract 1 View
2001-08-17 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,679,945
App. No.
09/931,161
Filed
2001-08-17
Granted
2004-01-20
Pub. No.
US20020044903A1
Art Unit
1755
PTA
-45 days