IP Library › Granted Patent US 4,707,064
Granted Patent Utility
US 4,707,064 · App. 06/882,426

Optical mixing/demixing device

Inventors: Jerzy A. Dobrowolski, Elmer H. Hara
Patented Case View Patent ↗
Granted: Nov 17, 1987 Filed: Jul 7, 1986
Inventors
Jerzy A. Dobrowolski
Elmer H. Hara
Assignee (at issue)
Canadian Patents and Development 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 4,707,064
App. No.
06/882,426
Filed
1986-07-07
Granted
1987-11-17
Kind
A