IP Library › Granted Patent US 5,665,491
Granted Patent Utility
US 5,665,491 · App. 08/764,728

Nonaqueous secondary battery

Inventors: Hideki Tomiyama, Masuo Kabutomori
Patented Case View Patent ↗
Granted: Sep 9, 1997 Filed: Dec 10, 1996
Inventors
Hideki Tomiyama
Masuo Kabutomori
Assignee (at issue)
Fujitsu Limited

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 5,665,491
App. No.
08/764,728
Filed
1996-12-10
Granted
1997-09-09
Kind
A