IP Library Granted Patent US 6,472,766
Granted Patent Utility
US 6,472,766 · Confirmation No. 5133

STEP MASK

Inventor: Guangming Xiao
⬇ PDF
Code Description Pages PDF
2001-01-05 TRNA Transmittal of New Application 2 View
2001-01-05 SPEC Specification 12 View
2001-01-05 CLM Claims 14 View
2001-01-05 ABST Abstract 1 View
2001-01-05 DRW Drawings-only black and white line drawings 5 View
2001-01-05 OATH Oath or Declaration filed 1 View
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Quick Facts
Patent No.
US 6,472,766
App. No.
09/755,438
Filed
2001-01-05
Granted
2002-10-29
Pub. No.
US20020127881A1
Examiner
NHU, DAVID
Art Unit
2818
PTA
-44 days