Granted Patent
Utility
US 4,495,642 · App. 06/352,672
Timing analyzer with combination transition and duration trigger
Inventor:
Joel A. Zellmer
Patented Case
View Patent ↗
Granted: Jan 22, 1985
Filed: Feb 26, 1982
Inventor
Joel A. Zellmer
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.