Granted Patent
Utility
US 5,668,609 · App. 08/303,242
Motion detector and key signal interpolator using same
Inventors:
Brion L. Dunbar, Daniel J. Chaplin
Patented Case
View Patent ↗
Granted: Sep 16, 1997
Filed: Sep 8, 1994
Inventors
Brion L. Dunbar
Daniel J. Chaplin
Assignee (at issue)
Tektronix, 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.