Granted Patent
Utility
US 4,185,501 · App. 05/876,989
Ultrasonic sector scanner
Inventors:
Andrew P. Proudian, Arthur E. Nagy
Patented Case
View Patent ↗
Granted: Jan 29, 1980
Filed: Feb 13, 1978
Inventors
Andrew P. Proudian
Arthur E. Nagy
Assignee (at issue)
Second Foundation, 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.