Granted Patent
Utility
US 4,644,301 · App. 06/793,146
Redundancy system and switching network
Inventor:
Martin Hecht
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Oct 31, 1985
Inventor
Martin Hecht
Assignee (at issue)
RCA 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.