IP Library › Granted Patent US 6,642,810
Granted Patent Utility
US 6,642,810 · Confirmation No. 2523

WAVEGUIDE APPARATUS

Inventor: Shuguang Chen
Patented Case View Patent ↗
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 Code Description Pages PDF
2012-04-25 LET. Miscellaneous Incoming Letter 1 View
2012-04-25 N417 Electronic Filing System Acknowledgment Receipt 2 View
2009-11-18 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2008-04-02 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2003-08-08 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-07-19 TRNA Transmittal of New Application 2 View
2002-07-19 SPEC Specification 15 View
2002-07-19 CLM Claims 4 View
2002-07-19 ABST Abstract 1 View
2002-07-19 DRW Drawings-only black and white line drawings 7 View
2002-07-19 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,642,810
App. No.
10/199,732
Filed
2002-07-19
Granted
2003-11-04
Art Unit
2819
PTA
0 days