IP Library › Granted Patent US 6,634,771
Granted Patent Utility
US 6,634,771 · Confirmation No. 5293

SEMICONDUCTOR LIGHT SOURCE USING A PRIMARY AND SECONDARY HEAT SINK COMBINATION

Inventor: Densen Cao
Patented Case View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2013-10-07 PETDEC Petition Decision 1 View
2013-10-07 WFEE Fee Worksheet (SB06) 2 View
2013-08-08 PET.OP Petition for review by the Office of Petitions 2 View
2013-08-08 TRAN.LET Transmittal Letter 1 View
2003-08-28 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-28 OATH Oath or Declaration filed 1 View
2003-08-28 LET. Miscellaneous Incoming Letter 1 View
2003-08-28 DRW Drawings-only black and white line drawings 16 View
2001-08-24 TRNA Transmittal of New Application 1 View
2001-08-24 SPEC Specification 12 View
2001-08-24 CLM Claims 4 View
2001-08-24 ABST Abstract 1 View
2001-08-24 DRW Drawings-only black and white line drawings 16 View
2001-08-24 OATH Oath or Declaration filed 2 View
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this application's details
Quick Facts
Patent No.
US 6,634,771
App. No.
09/939,488
Filed
2001-08-24
Granted
2003-10-21
Pub. No.
US20030039120A1
Art Unit
2875
PTA
-175 days