IP Library Granted Patent US 6,521,498
Granted Patent Utility
US 6,521,498 · Confirmation No. 9304

MANUFACTURE OF TRENCH-GATE SEMICONDUCTOR DEVICES

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Code Description Pages PDF
2002-06-04 TRNA Transmittal of New Application 3 View
2002-06-04 CLM Claims 1 View
2002-01-22 TRNA Transmittal of New Application 2 View
2002-01-22 A.PE Preliminary Amendment 5 View
2002-01-22 SPEC Specification 20 View
2002-01-22 CLM Claims 4 View
2002-01-22 ABST Abstract 1 View
2002-01-22 DRW Drawings-only black and white line drawings 5 View
2002-01-22 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,521,498
App. No.
10/055,350
Filed
2002-06-04
Effective Filing
2002-01-22
Granted
2003-02-18
Pub. No.
US20020137291A1
Art Unit
2813
PTA
-6 days