Granted Patent
Utility
US 6,301,341 · App. 09/573,040
System and method for performing telephone line-in-use detection, extension pick-up detection, and remote hang-up detection in a modem
Inventors:
Andrew Roman Gizara, Robert W. Frankland
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: May 17, 2000
Inventors
Andrew Roman Gizara
Robert W. Frankland
Assignee (at issue)
Conexant Systems, LLC
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.