IP Library › Granted Patent US 5,923,978
Granted Patent Utility
US 5,923,978 · App. 08/933,763

Nonvolatile semiconductor memory and methods for manufacturing and using the same

Inventor: Yosiaki Hisamune
Patented Case View Patent ↗
Granted: Jul 13, 1999 Filed: Sep 23, 1997
Inventor
Yosiaki Hisamune
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 5,923,978
App. No.
08/933,763
Filed
1997-09-23
Granted
1999-07-13
Kind
A