IP Library › Granted Patent US 5,670,809
Granted Patent Utility
US 5,670,809 · App. 08/619,189

Non-volatile semiconductor memory device

Inventor: Kenji Saitoh
Patented Case View Patent ↗
Granted: Sep 23, 1997 Filed: Mar 21, 1996
Inventor
Kenji Saitoh
Assignee (at issue)
NEC CORPORATION

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

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 patent's details
Quick Facts
Patent No.
US 5,670,809
App. No.
08/619,189
Filed
1996-03-21
Granted
1997-09-23
Kind
A