IP Library › Granted Patent US 6,556,481
Granted Patent Utility
US 6,556,481 · Confirmation No. 4062

NOVEL 3-STEP WRITE OPERATION NONVOLATILE SEMICONDUCTOR ONE-TRANSISTOR, NOR-TYPE FLASH EEPROM MEMORY CELL

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2011-03-22 C.AD Change of Address 2 View
2011-03-22 N417 Electronic Filing System Acknowledgment Receipt 2 View
2011-02-03 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-02-03 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-01-25 PA.. Power of Attorney 2 View
2011-01-25 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2011-01-25 N417 Electronic Filing System Acknowledgment Receipt 2 View
2009-05-18 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2009-05-18 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2009-05-15 LET. Miscellaneous Incoming Letter 1 View
2009-05-15 N417 Electronic Filing System Acknowledgment Receipt 2 View
2009-05-11 PA.. Power of Attorney 2 View
2009-05-11 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2009-05-11 C.AD Change of Address 1 View
2009-05-11 N417 Electronic Filing System Acknowledgment Receipt 2 View
2001-05-09 TRNA Transmittal of New Application 2 View
2001-05-09 SPEC Specification 18 View
2001-05-09 CLM Claims 4 View
2001-05-09 ABST Abstract 1 View
2001-05-09 DRW Drawings-only black and white line drawings 9 View
2001-05-09 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,556,481
App. No.
09/852,247
Filed
2001-05-09
Granted
2003-04-29
Art Unit
2824
PTA
0 days