IP Library › Granted Patent US 5,111,333
Granted Patent Utility
US 5,111,333 · App. 07/585,685

Optical mixer

Inventors: Alistair Coles, David G. Cunningham
Patented Case View Patent ↗
Granted: May 5, 1992 Filed: Sep 19, 1990
Inventors
Alistair Coles
David G. Cunningham
Assignee (at issue)
Hewlett-Packard Company, L.P.

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 5,111,333
App. No.
07/585,685
Filed
1990-09-19
Granted
1992-05-05
Kind
A