Granted Patent
Utility
US 4,603,301 · App. 06/628,067
Amplitude insensitive delay lines in a frequency modulated signal detector
Inventors:
John N. Dukes, Richard A. Baumgartner, Thomas A. Shoup
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: Jul 5, 1984
Inventors
John N. Dukes
Richard A. Baumgartner
Thomas A. Shoup
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.