IP Library Granted Patent US 6,561,227
Granted Patent Utility
US 6,561,227 · Confirmation No. 3323

WELLBORE CASING

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Code Description Pages PDF
2011-03-01 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2008-04-10 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2006-06-21 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2006-06-19 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2001-07-26 DRW Drawings-only black and white line drawings 26 View
2001-05-09 TRNA Transmittal of New Application 2 View
2001-05-09 A.PE Preliminary Amendment 5 View
2001-05-09 SPEC Specification 82 View
2001-05-09 CLM Claims 5 View
2001-05-09 ABST Abstract 1 View
2001-05-09 DRW Drawings-only black and white line drawings 26 View
2001-05-09 OATH Oath or Declaration filed 4 View
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Quick Facts
Patent No.
US 6,561,227
App. No.
09/852,026
Filed
2001-05-09
Granted
2003-05-13
Pub. No.
US20010047866A1
Art Unit
3752
PTA
-56 days