Granted Patent
Utility
US 4,536,683 · App. 06/507,704
Horizontal phase shifter
Inventor:
Leroy A. Sutton
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Jun 23, 1983
Inventor
Leroy A. Sutton
Assignee (at issue)
Zenith Electronics LLC
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.