Granted Patent
Utility
US 6,044,185 · App. 09/006,891
Optical switch module
Inventor:
Robert I. MacDonald
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Jan 14, 1998
Inventor
Robert I. MacDonald
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.