IP Library › Granted Patent US 6,574,549
Granted Patent Utility
US 6,574,549 · Confirmation No. 6904

METHOD AND SYSTEM FOR THE VISUALLY IMPAIRED TO NAVIGATE A ROUTE THROUGH A FACILITY

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 Code Description Pages PDF
2010-03-18 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2001-03-09 TRNA Transmittal of New Application 4 View
2001-03-09 SPEC Specification 13 View
2001-03-09 CLM Claims 8 View
2001-03-09 ABST Abstract 1 View
2001-03-09 DRW Drawings-only black and white line drawings 7 View
2001-03-09 OATH Oath or Declaration filed 2 View
2001-03-09 TRNA Transmittal of New Application 4 View
2001-03-09 SPEC Specification 13 View
2001-03-09 CLM Claims 8 View
2001-03-09 ABST Abstract 1 View
2001-03-09 DRW Drawings-only black and white line drawings 7 View
2001-03-09 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,574,549
App. No.
09/802,703
Filed
2001-03-09
Granted
2003-06-03
Pub. No.
US20020128765A1
Art Unit
3661
PTA
-113 days