Granted Patent
Utility
US 4,595,890 · App. 06/391,968
Dual polarization transition and/or switch
Inventor:
Donald C. Cloutier
Patented Case
View Patent ↗
Granted: Jun 17, 1986
Filed: Jun 24, 1982
Inventor
Donald C. Cloutier
Assignee (at issue)
Omni Spectra, Inc.
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.