Granted Patent
Utility
US 4,608,684 · App. 06/593,342
Digital switching systems employing multi-channel frame association apparatus
Inventor:
Daniel C. Upp
Patented Case
View Patent ↗
Granted: Aug 26, 1986
Filed: Mar 26, 1984
Inventor
Daniel C. Upp
Assignee (at issue)
ITT Corporation
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.