Granted Patent
Utility
US 4,425,643 · App. 06/271,347
Multi-speed logic analyzer
Inventors:
David Duane Chapman, Gerd H. Hoeren, Steven R. Palmquist
Patented Case
View Patent ↗
Granted: Jan 10, 1984
Filed: Jun 8, 1981
Inventors
David Duane Chapman
Gerd H. Hoeren
Steven R. Palmquist
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.