IP Library › Granted Patent US 5,974,213
Granted Patent Utility
US 5,974,213 · App. 08/969,308

Transparent light guide members

Inventors: Yoshihiro Maruchi, Eiichi Uematsu
Patented Case View Patent ↗
Granted: Oct 26, 1999 Filed: Nov 13, 1997
Inventors
Yoshihiro Maruchi
Eiichi Uematsu
Assignee (at issue)
Matsushita Electric Works, 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 5,974,213
App. No.
08/969,308
Filed
1997-11-13
Granted
1999-10-26
Kind
A