Granted Patent
Utility
US 6,690,769 · App. 09/792,849
Hand-held telecommunication loop testing device
Inventor:
Robert Haines
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Feb 24, 2001
Inventor
Robert Haines
Assignee (at issue)
Telesector Resources Group, Inc.
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.