IP Library › Granted Patent US 5,458,928
Granted Patent Utility
US 5,458,928 · App. 08/070,726

Method of forming metal material film with controlled color characteristic

Inventors: Seiichi Kiyama, Hitoshi Hirano, Yoichi Domoto, Keiichi Kuramoto
Patented Case View Patent ↗
Granted: Oct 17, 1995 Filed: Jun 2, 1993
Inventors
Seiichi Kiyama
Hitoshi Hirano
Yoichi Domoto
Keiichi Kuramoto
Assignee (at issue)
SANYO ELECTRIC CO., LTD.

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 5,458,928
App. No.
08/070,726
Filed
1993-06-02
Granted
1995-10-17
Kind
A