IP Library › Granted Patent US 6,558,820
Granted Patent Utility
US 6,558,820 · Confirmation No. 5339

HIGH CONTRAST LIGHT-EMITTING DIODE DEVICES

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2011-03-29 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2010-04-12 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-04-12 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2001-05-10 TRNA Transmittal of New Application 1 View
2001-05-10 SPEC Specification 22 View
2001-05-10 CLM Claims 6 View
2001-05-10 ABST Abstract 1 View
2001-05-10 DRW Drawings-only black and white line drawings 3 View
2001-05-10 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,558,820
App. No.
09/852,956
Filed
2001-05-10
Granted
2003-05-06
Pub. No.
US20030035978A1
Art Unit
1774
PTA
0 days