Granted Patent
Utility
US 4,170,774 · App. 05/219,775
Amplitude selected phase interferometer angle measuring radar
Inventor:
Carl F. Schaefer
Patented Case
View Patent ↗
Granted: Oct 9, 1979
Filed: Jan 24, 1972
Inventor
Carl F. Schaefer
Assignee (at issue)
UNITED TECHNOLOGIES CORPORATION
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.