IP Library › Granted Patent US 6,680,232
Granted Patent Utility
US 6,680,232 · Confirmation No. 3936

TRENCH ETCH WITH INCREMENTAL OXYGEN FLOW

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2003-11-28 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-11-26 LET. Miscellaneous Incoming Letter 2 View
2003-11-26 DRW Drawings-only black and white line drawings 4 View
2001-09-19 TRNA Transmittal of New Application 9 View
2001-09-19 SPEC Specification 6 View
2001-09-19 CLM Claims 3 View
2001-09-19 ABST Abstract 1 View
2001-09-19 DRW Drawings-only black and white line drawings 4 View
2001-09-19 OATH Oath or Declaration filed 3 View
2001-09-19 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,680,232
App. No.
09/956,568
Filed
2001-09-19
Granted
2004-01-20
Pub. No.
US20020061621A1
Art Unit
2823
PTA
-6 days