IP Library › Granted Patent US 6,639,849
Granted Patent Utility
US 6,639,849 · Confirmation No. 4151

NONVOLATILE SEMICONDUCTOR MEMORY DEVICE PROGRAMMING SECOND DYNAMIC REFERENCE CELL ACCORDING TO THRESHOLD VALUE OF FIRST DYNAMIC REFERENCE CELL

Patented Case View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2013-08-02 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2013-08-02 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2013-07-23 PA.. Power of Attorney 1 View
2013-07-23 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2013-07-23 LET. Miscellaneous Incoming Letter 1 View
2013-07-23 N417 Electronic Filing System Acknowledgment Receipt 2 View
2013-07-23 TRAN.LET Transmittal Letter 1 View
2009-08-31 PET.POA.WDRW Request for withdrawal as attorney or agent 2 View
2009-08-31 AF/D Affidavit-submitted prior to Mar 15, 2013 1 View
2009-08-31 AF/D Affidavit-submitted prior to Mar 15, 2013 18 View
2009-08-31 LET. Miscellaneous Incoming Letter 9 View
2009-08-31 N417 Electronic Filing System Acknowledgment Receipt 2 View
2009-08-31 TRAN.LET Transmittal Letter 1 View
2003-08-22 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-22 LET. Miscellaneous Incoming Letter 1 View
2003-02-03 TRNA Transmittal of New Application 1 View
2003-02-03 SPEC Specification 24 View
2003-02-03 CLM Claims 4 View
2003-02-03 ABST Abstract 1 View
2003-02-03 DRW Drawings-only black and white line drawings 12 View
2003-02-03 OATH Oath or Declaration filed 3 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 6,639,849
App. No.
10/356,495
Filed
2003-02-03
Granted
2003-10-28
Pub. No.
US20030161188A1
Examiner
LUU, PHO M
Art Unit
2824
PTA
0 days