IP Library › Granted Patent US 6,722,818
Granted Patent Utility Small
US 6,722,818 · Confirmation No. 2117

DITCH LINER SYSTEM

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2019-07-11 C.AD Change of Address 2 View
2019-07-11 N417 Electronic Filing System Acknowledgment Receipt 2 View
2019-07-11 MFEE.C.AD Maintenance Fee Address Change 1 View
2006-06-06 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2006-06-02 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2004-02-18 IFEE Issue Fee Payment (PTO-85B) 4 View
2003-06-03 TRNA Transmittal of New Application 6 View
2003-06-03 A.PE Preliminary Amendment 6 View
2003-06-03 SPEC Specification 13 View
2003-06-03 CLM Claims 6 View
2003-06-03 ABST Abstract 1 View
2003-06-03 DRW Drawings-only black and white line drawings 8 View
2003-06-03 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,722,818
App. No.
10/453,673
Filed
2003-06-03
Granted
2004-04-20
Art Unit
3673
PTA
0 days