Granted Patent
Utility
US 6,570,984 · App. 09/294,387
Ring trip detection circuit and method for subscriber line interface
Inventor:
Moti Shalev
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Apr 20, 1999
Inventor
Moti Shalev
Assignee (at issue)
ECI Telecom Ltd.
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.