IP Library › Granted Patent US 6,379,821
Granted Patent Utility
US 6,379,821 · Confirmation No. 8639

MARTENSITIC STAINLESS STEEL WELDED PIPE

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 Code Description Pages PDF
2001-04-02 TRNA Transmittal of New Application 3 View
2001-04-02 A.PE Preliminary Amendment 7 View
2001-04-02 SPEC Specification 53 View
2001-04-02 CLM Claims 4 View
2001-04-02 ABST Abstract 1 View
2001-04-02 DRW Drawings-only black and white line drawings 2 View
2001-04-02 OATH Oath or Declaration filed 2 View
2001-04-02 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,379,821
App. No.
09/822,233
Filed
2001-04-02
Granted
2002-04-30
Pub. No.
US20010030004A1
Art Unit
1775
PTA
0 days