IP Library › Granted Patent US 6,615,938
Granted Patent Utility
US 6,615,938 · Confirmation No. 1171

MECHANISM FOR STAIR CLIMBING IN A CLUSTER-WHEEL VEHICLE

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2007-11-07 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
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2007-10-11 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2007-10-03 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2006-10-13 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2003-07-11 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-07-11 LET. Miscellaneous Incoming Letter 2 View
2002-09-03 TRNA Transmittal of New Application 2 View
2002-09-03 ADS Application Data Sheet 2 View
2002-09-03 SPEC Specification 18 View
2002-09-03 CLM Claims 1 View
2002-09-03 ABST Abstract 1 View
2002-09-03 DRW Drawings-only black and white line drawings 7 View
2002-09-03 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,615,938
App. No.
10/234,025
Filed
2002-09-03
Granted
2003-09-09
Pub. No.
US20030111279A1
Art Unit
3611
PTA
-86 days